Quintal to Ounce Converter
Convert quintals to ounces with our free online weight converter.
Quick Answer
1 Quintal = 3527.396198 ounces
Formula: Quintal × conversion factor = Ounce
Use the calculator below for instant, accurate conversions.
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All conversion formulas on UnitsConverter.io have been verified against NIST (National Institute of Standards and Technology) guidelines and international SI standards. Our calculations are accurate to 10 decimal places for standard conversions and use arbitrary precision arithmetic for astronomical units.
Quintal to Ounce Calculator
How to Use the Quintal to Ounce Calculator:
- Enter the value you want to convert in the 'From' field (Quintal).
- The converted value in Ounce will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Weight category.
- Click the swap button (⇌) to reverse the conversion direction.
How to Convert Quintal to Ounce: Step-by-Step Guide
Converting Quintal to Ounce involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Quintal = 3527.4 ouncesExample Calculation:
Convert 5 quintals: 5 × 3527.4 = 17637 ounces
Disclaimer: For Reference Only
These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.
Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.
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View all Weight conversions →What is a Quintal and a Ounce?
The quintal (symbol: q) is a unit of mass equal to 100 kilograms (220.462 pounds) in the metric system. The term derives from Arabic qinṭār (قنطار), itself from Latin centenarius ("containing a hundred"), reflecting its fundamental definition as "a hundred units" of mass.
The Metric Quintal (100 kg)
The modern metric quintal is precisely defined as:
- 100 kilograms (exact)
- 0.1 metric tons (tonnes)
- 100,000 grams
- 220.462 pounds (avoirdupois)
This standardized definition emerged from France's adoption of the metric system (1795-1799), where the quintal was redefined as exactly 100 kg, replacing the pre-revolutionary quintal of 48.95 kg (100 livres).
Historical Quintal Variants
Before metrication, numerous regional quintal definitions existed:
- French quintal (pre-1795): 48.95 kg (100 livres poids de marc)
- Spanish quintal (quintal castellano): 46.01 kg (100 libras)
- Portuguese quintal: 58.75 kg (4 arrobas)
- Egyptian qinṭār: 44.93 kg (100 raṭls)
- British quintal: 112 pounds (50.80 kg, equivalent to 1 hundredweight)
- Venetian cantaro: 47.66 kg
- Dutch centenaar: 49.4-50.2 kg (varied by city)
- Mexican quintal: 46.01 kg (Spanish colonial)
These variations made international trade complex, contributing to the 19th-20th century push toward metric standardization.
The Quintal in Agricultural Trade
The quintal's strength lies in its practical scale for bulk commodity trade:
- 1 quintal = 2 standard grain bags (50 kg each)
- 10 quintals = 1 metric ton (clean decimal conversion)
- Human-manageable scale: 100 kg is within the range two workers can handle
- Intermediate unit: Bridges small-scale sacks and large-scale tonnage
In commodity markets, prices are often quoted per quintal for crops like wheat, rice, coffee, sugar, and cotton.
The ounce (symbol: oz, from Italian onza) is a unit of mass equal to exactly 1/16 of an avoirdupois pound, which is 28.349523125 grams in the metric system.
Avoirdupois Ounce vs. Troy Ounce
When Americans say "ounce" in everyday life, they almost always mean the avoirdupois ounce (28.35 g). However, there's a second type of ounce:
Avoirdupois Ounce (Standard Ounce):
- 28.35 grams
- Used for: food, cooking, postal weight, groceries, body weight, general commerce
- 16 ounces = 1 avoirdupois pound
Troy Ounce:
- 31.10 grams (about 10% heavier)
- Used exclusively for: precious metals (gold, silver, platinum), gemstones, gunpowder
- 12 troy ounces = 1 troy pound
- Abbreviated: "oz t" or "ozt"
Critical distinction: When buying gold or silver, prices are quoted per troy ounce (31.1 g), not avoirdupois ounce (28.35 g). A troy ounce is about 2.75 grams heavier than a standard ounce.
Note: The Quintal is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Ounce belongs to the imperial/US customary system.
History of the Quintal and Ounce
The quintal's 1,300-year journey from Islamic trade networks to modern agricultural markets reflects the evolution of international commerce and measurement standardization.
Arabic Origins (7th-9th Centuries)
The quintal traces to the Arabic qinṭār (قنطار), borrowed from Latin centenarius ("hundred-weight") or Greek kentenarion (κεντηνάριον). During the Islamic Golden Age (750-1258 CE), Arab merchants dominated Mediterranean, Red Sea, and Indian Ocean trade routes, establishing the qinṭār as a standard for trading spices, grain, textiles, and metals.
The qinṭār typically equaled 100 raṭls (رطل), with the raṭl varying by region from 380-550 grams, making historical qinṭārs range from 38-55 kg. Baghdad's Abbasid Caliphate standardized the qinṭār for taxation and trade regulation around 100 raṭls of approximately 400-450 grams each.
Medieval European Adoption (11th-15th Centuries)
Crusader contact, Venetian trade monopolies, and Reconquista Spain brought Islamic measurement units into European commerce. The quintal entered Romance languages:
- Italian: quintale
- Spanish: quintal
- Portuguese: quintal
- French: quintal
- Catalan: quintar
Each region adapted the concept to their local pound (livre, libra, lira), creating dozens of quintal variants. Venice's cantaro (47.66 kg) dominated Mediterranean spice trade, while Iberian quintals (46-59 kg) became colonial standards in the Americas.
Colonial Spread (16th-18th Centuries)
Portuguese and Spanish colonial expansion exported quintal standards to:
- Latin America: Spanish quintal (46 kg) for silver, cacao, sugar
- Brazil: Portuguese quintal (58.75 kg) for sugar, coffee, gold
- Philippines: Spanish quintal for rice, hemp, sugar (until 1906)
- Goa and Macau: Portuguese quintal in Indian and Chinese trade
These colonial quintals persisted long after independence, with Brazil using the Portuguese quintal until adopting the metric version in the mid-20th century.
French Metric Quintal (1795-1799)
The French Revolution's measurement reform created the metric system, redefining the quintal as exactly 100 kilograms on December 10, 1799 (19 Frimaire, Year VIII).
This represented a radical simplification:
- Old French quintal: 48.95 kg (100 livres poids de marc)
- New metric quintal: 100 kg (100,000 grams)
- Decimal elegance: 10 quintals = 1 ton; 1 quintal = 100 kg = 100,000 g
The metric quintal provided a convenient intermediate unit between the kilogram and the tonne (1,000 kg), ideal for agricultural commerce.
International Adoption (19th-20th Centuries)
The Treaty of the Metre (May 20, 1875) established the International Bureau of Weights and Measures (BIPM) and promoted metric standardization. The 100 kg quintal spread through:
European Metrication:
- Italy (1861 unification): Adopted metric quintal for grain markets
- Germany (1872): Zentner (50 kg) preferred over quintal
- Spain (1852, enforced 1880): Spanish quintal → metric quintal
- Portugal (1852, enforced 1866): Portuguese quintal → metric quintal
Colonial and Post-Colonial Adoption:
- India (1947): British hundredweight replaced by metric quintal
- Pakistan (1947): Adopted metric quintal for wheat, rice, cotton
- Bangladesh (1971): Inherited Pakistani metric quintal
- Francophone Africa (1960s): French colonies adopted metric quintal
- Brazil (mid-20th century): Portuguese quintal → metric quintal
Agricultural Commodity Exchanges:
- Chicago Board of Trade (1848-present): US hundredweight (100 lb, 45.36 kg)
- Brazilian coffee markets (early 20th century): Adopted 60 kg bags (0.6 quintals)
- Indian wheat mandis (markets): Quintals standard by 1950s-1960s
Modern Usage (20th-21st Centuries)
Today, the metric quintal remains active in:
- South Asia: India, Pakistan, Bangladesh use quintals for grain prices
- Latin America: Brazil for coffee/sugar, Argentina for grain
- France and Francophone regions: Agricultural statistics, farm sales
- Mediterranean: Parts of Italy, Spain, Portugal in rural markets
- Africa: Former French colonies (Senegal, Ivory Coast, Mali)
Anglo-American markets largely abandoned the quintal for:
- Metric ton (1,000 kg) in international trade
- US hundredweight (100 lb = 45.36 kg) in American markets
- British hundredweight (112 lb = 50.80 kg) until full metrication (1990s)
Roman Origins: The Uncia
Latin Etymology: The word "ounce" comes from the Latin "uncia," meaning "one-twelfth" (related to "inch," from the same root).
Roman Measurement: In ancient Rome, the uncia was 1/12 of a Roman pound (libra), approximately 27 grams. The Romans used base-12 (duodecimal) systems for many measurements.
Symbol Origin: The abbreviation "oz" comes from the medieval Italian word onza (ounce), not from any English word starting with "o" and "z."
Medieval European Variation
Regional Chaos: Throughout medieval Europe, dozens of different "ounces" existed, varying by region, city, and trade guild. An ounce in Paris differed from an ounce in London, Venice, or Amsterdam.
Two Main English Systems:
Troy System (for precious goods):
- Used for gold, silver, jewels, and later gunpowder
- Troy ounce: 31.1 grams
- 12 troy ounces = 1 troy pound
- Named after Troyes, France, site of important medieval trade fairs
Avoirdupois System (for bulk goods):
- From French avoir de pois ("goods of weight")
- Used for wool, grain, cheese, meat—everyday bulk commodities
- Avoirdupois ounce: 28.35 grams
- 16 avoirdupois ounces = 1 avoirdupois pound
- Developed by medieval merchants for practical trade
English Standardization
1300s-1500s: Gradual Standardization: English monarchs attempted to standardize weights and measures, but variation persisted.
1588: Queen Elizabeth I: Confirmed the avoirdupois system for general trade, establishing 16 ounces per pound for commerce.
Troy System Preserved: The troy ounce remained the standard for precious metals, a tradition maintained to this day.
1959: International Agreement
Modern Definition: The 1959 international yard and pound agreement between the United States, United Kingdom, Canada, Australia, New Zealand, and South Africa defined:
- 1 pound (avoirdupois) = exactly 453.59237 grams
- 1 ounce (avoirdupois) = exactly 1/16 pound = 28.349523125 grams
This eliminated minor variations between US and British measurements and anchored imperial units to the metric system.
Common Uses and Applications: quintals vs ounces
Explore the typical applications for both Quintal (imperial/US) and Ounce (imperial/US) to understand their common contexts.
Common Uses for quintals
Agricultural Commodity Trading
The quintal is the standard unit for pricing and trading bulk agricultural products in many markets:
Indian Agricultural Markets (Mandis):
- Wheat prices quoted in rupees per quintal (₹/quintal)
- Rice, cotton, sugarcane traded by quintal
- Government Minimum Support Price (MSP) set per quintal
- Example: Wheat MSP 2023-24 = ₹2,125 per quintal (~$25.50/quintal)
Brazilian Coffee Market:
- Coffee traded in 60 kg bags (0.6 quintals) or full quintals
- Brazilian Real per quintal (@) pricing
- São Paulo commodity exchange quotes
French Agricultural Statistics:
- Crop yields reported in quintaux per hectare (q/ha)
- Wheat: 65-75 q/ha typical yield
- Corn: 80-100 q/ha modern varieties
- Vineyards measured by hectoliters, grain by quintals
Farm Production Records
Farmers track yields, sales, and inventory in quintals where traditional:
- Harvest tallies: "We harvested 450 quintals of wheat from 10 hectares"
- Storage management: "Warehouse capacity 2,000 quintals"
- Sales records: "Sold 120 quintals at ₹2,000/quintal = ₹240,000"
- Seed calculations: "Need 8 quintals of seed for 40 hectares" (20 kg/hectare)
Government Agricultural Policy
Governments use quintals for agricultural planning:
- India's Food Corporation: Procures millions of quintals for public distribution
- Minimum Support Prices: Guaranteed prices per quintal
- Crop insurance: Coverage based on quintals per hectare yields
- Export quotas: "Allow export of 5 million quintals of wheat"
- Buffer stock targets: "Maintain 100 million quintal strategic reserve"
Food Processing Industry
Processing plants measure intake and output in quintals:
- Sugar mills: Sugarcane crushed measured in quintals, sugar recovery percentage calculated
- Rice mills: Paddy intake in quintals, milled rice output (60-70% recovery)
- Flour mills: Wheat processed per day (e.g., 500 quintals/day capacity)
- Coffee roasters: Green coffee beans purchased by quintal
Commodity Futures and Contracts
Agricultural futures markets use quintals in some regions:
- Indian commodity exchanges (MCX, NCDEX): Contracts in quintals
- European grain markets: Tonnes preferred, but quintals used in conversion
- Contract specifications: "Wheat futures: 10 quintals per contract"
Historical and Cultural Contexts
The quintal appears in:
- Historical trade records: Colonial shipping manifests, customs documents
- Literature: Portuguese, Spanish, French novels mentioning quintal prices
- Traditional farming: Multi-generational farms in Mediterranean Europe
- Legal disputes: Land productivity measured in quintals per hectare for valuation
When to Use ounces
Cooking and Baking
Recipe Measurements: American recipes commonly specify ingredient weights in ounces:
- Dry ingredients: flour, sugar, chocolate chips, nuts
- Solid fats: butter, shortening, cream cheese
- Proteins: chicken breasts (6 oz), ground beef (12 oz)
Kitchen Scales: Digital kitchen scales display weight in ounces (and grams), allowing precise measurement:
- Toggle between oz and g
- Tare function to zero out container weight
- Precision to 0.1 oz or 1 gram
Baker's Preference: Professional bakers prefer weight (ounces) over volume (cups) because:
- More accurate and consistent
- Eliminates measurement errors
- Works regardless of how ingredients settle or compact
Additional Unit Information
About Quintal (q)
How many kilograms are in a metric quintal?
There are exactly 100 kilograms in 1 metric quintal. This is the internationally standardized definition adopted after the French Revolution (1799) and now used in agriculture worldwide.
How does a quintal relate to a metric ton?
1 metric ton (tonne) = 10 quintals. Since 1 tonne = 1,000 kg and 1 quintal = 100 kg, the conversion is a simple decimal shift. This makes quintals ideal for intermediate-scale agricultural measurements.
Is a quintal always 100 kg?
In modern usage, yes—the metric quintal is always 100 kg. However, historically no—pre-metric quintals ranged from 40-120 kg depending on region:
- Spanish: 46 kg
- Portuguese: 58.75 kg
- French (pre-1795): 48.95 kg
- British: 50.8 kg (112 lb) Always check context and date when encountering quintals in historical documents.
Why do Indian farmers use quintals instead of kilograms or tons?
The quintal offers a practical middle scale for farm operations:
- Too small: Tracking thousands of kilograms is cumbersome (5,000 kg vs. 50 quintals)
- Too large: Tons are too big for small farmer transactions (5 tons sounds massive vs. 50 quintals)
- Manageable numbers: Most harvests range 20-100 quintals per hectare (easy mental math)
- Traditional: India adopted quintals during metrication (1947-1960s), now culturally ingrained
- Government policy: Minimum Support Prices quoted per quintal, making it standard
What is the difference between a quintal and a hundredweight?
Metric quintal = 100 kg = 220.462 lb US hundredweight (cwt) = 100 lb = 45.36 kg British hundredweight (cwt) = 112 lb = 50.80 kg
A metric quintal is 2.2× heavier than US cwt and 1.97× heavier than British cwt. The names both mean "hundred," but refer to different base units (metric kg vs. imperial pounds).
How do you convert quintals per hectare to bushels per acre?
Step-by-step for wheat (1 bushel ≈ 27.22 kg at 60 lb/bushel):
-
Convert quintals/ha to kg/ha: Multiply by 100
- 50 q/ha = 5,000 kg/ha
-
Convert kg to bushels: Divide by 27.22 kg/bushel
- 5,000 kg ÷ 27.22 = 183.7 bushels
-
Convert hectares to acres: Divide by 2.47 acres/ha
- 183.7 bushels/ha ÷ 2.47 = 74.4 bushels per acre
Quick formula: q/ha × 0.367 ≈ bushels/acre (for wheat)
Are quintals used in the United States?
Very rarely. The US agricultural sector uses:
- Bushels for grain (wheat, corn, soybeans)
- US hundredweight (100 lb) for livestock, potatoes
- Pounds or tons (2,000 lb) for most commodities
- Metric tons for international trade
Quintals might appear in international trade documents, Latin American imports, or historical contexts, but are not part of standard US agricultural commerce.
Why is Brazilian coffee measured in 60 kg bags instead of quintals?
The 60 kg bag (0.6 quintals) became the Brazilian coffee standard due to:
- Historical Portuguese quintal: 58.75 kg ≈ 60 kg (close approximation)
- Human handling: 60 kg is about the maximum two workers can comfortably lift
- International standard: The 60 kg bag became global coffee standard adopted by other producers
- Convenient: 1,000 kg = 16.67 bags (close to 17), making mental math easier than 10 quintals
Brazilian coffee is thus priced per "saca" (60 kg bag), though sometimes converted to quintals for comparison.
How much wheat is 100 quintals in bushels?
100 quintals = 367 bushels (for wheat at 60 lb/bushel):
- 100 quintals = 10,000 kg = 22,046 pounds
- 22,046 lb ÷ 60 lb/bushel = 367.4 bushels
Alternatively:
- 10,000 kg ÷ 27.22 kg/bushel = 367.4 bushels
This represents about 15.3 acres of excellent wheat yield (24 bushels/acre × 15.3 = 367 bushels).
Do European countries still use quintals today?
Yes, but declining. Usage varies by country:
Still Common:
- France: Agricultural statistics (rendements en quintaux/hectare)
- Italy: Rural markets, traditional farming (quintale)
- Spain/Portugal: Some rural areas, older generation
- Francophone Africa: Senegal, Ivory Coast, Mali
Largely Replaced:
- Germany: Zentner (50 kg) or metric tons preferred
- UK: Fully metricated to kilograms/tonnes (1990s-2000s)
- Netherlands/Nordics: Kilograms and tonnes exclusively
Trend: Urban, industrial, and export sectors use metric tons; rural and traditional markets retain quintals.
What does "yield of 50 quintals per hectare" mean?
50 q/ha means:
- 5,000 kilograms per hectare (50 × 100 kg)
- 5 metric tons per hectare
- 2.02 metric tons per acre (÷ 2.47 acres/ha)
- 4,454 pounds per acre
Context:
- Wheat: 50 q/ha is a good yield (global average ~35 q/ha)
- Corn: 50 q/ha is low (modern varieties reach 100+ q/ha)
- Rice: 50 q/ha is moderate (high-yield areas reach 70+ q/ha)
How do I convert a price from quintals to metric tons?
Multiply by 10 (since 1 metric ton = 10 quintals):
Example 1 - Indian Wheat:
- ₹2,125 per quintal × 10 = ₹21,250 per metric ton
Example 2 - French Grain:
- €25 per quintal × 10 = €250 per metric ton
Example 3 - Brazilian Sugar:
- R$120 per quintal × 10 = R$1,200 per metric ton
Reverse (tons to quintals): Divide by 10
- $500/tonne ÷ 10 = $50 per quintal
Conversion Table: Quintal to Ounce
| Quintal (q) | Ounce (oz) |
|---|---|
| 0.5 | 1,763.698 |
| 1 | 3,527.396 |
| 1.5 | 5,291.094 |
| 2 | 7,054.792 |
| 5 | 17,636.981 |
| 10 | 35,273.962 |
| 25 | 88,184.905 |
| 50 | 176,369.81 |
| 100 | 352,739.62 |
| 250 | 881,849.05 |
| 500 | 1,763,698.099 |
| 1,000 | 3,527,396.198 |
People Also Ask
How do I convert Quintal to Ounce?
To convert Quintal to Ounce, enter the value in Quintal in the calculator above. The conversion will happen automatically. Use our free online converter for instant and accurate results. You can also visit our weight converter page to convert between other units in this category.
Learn more →What is the conversion factor from Quintal to Ounce?
The conversion factor depends on the specific relationship between Quintal and Ounce. You can find the exact conversion formula and factor on this page. Our calculator handles all calculations automatically. See the conversion table above for common values.
Can I convert Ounce back to Quintal?
Yes! You can easily convert Ounce back to Quintal by using the swap button (⇌) in the calculator above, or by visiting our Ounce to Quintal converter page. You can also explore other weight conversions on our category page.
Learn more →What are common uses for Quintal and Ounce?
Quintal and Ounce are both standard units used in weight measurements. They are commonly used in various applications including engineering, construction, cooking, and scientific research. Browse our weight converter for more conversion options.
For more weight conversion questions, visit our FAQ page or explore our conversion guides.
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📚 How to Convert Units
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🔢 Conversion Formulas
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⚖️ Metric vs Imperial
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⚠️ Common Mistakes
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All Weight Conversions
Other Weight Units and Conversions
Explore other weight units and their conversion options:
- Kilogram (kg) • Quintal to Kilogram
- Gram (g) • Quintal to Gram
- Milligram (mg) • Quintal to Milligram
- Pound (lb) • Quintal to Pound
- Stone (st) • Quintal to Stone
- Ton (metric) (t) • Quintal to Ton (metric)
- Ton (US) (ton) • Quintal to Ton (US)
- Ton (UK) (long ton) • Quintal to Ton (UK)
- Microgram (µg) • Quintal to Microgram
- Carat (ct) • Quintal to Carat
Verified Against Authority Standards
All conversion formulas have been verified against international standards and authoritative sources to ensure maximum accuracy and reliability.
National Institute of Standards and Technology — US standards for weight and mass measurements
International Organization for Standardization — International standard for mechanics quantities
Last verified: February 19, 2026