Grain to Quintal Conversion Calculator: Free Online Tool
Convert grains to quintals with our free online weight converter.
Grain to Quintal Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Grain).
- The converted value in Quintal 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 Grain to Quintal
Converting Grain to Quintal involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Grain = 6.47989e-7 quintalsExample Calculation:
Convert 5 grains: 5 × 6.47989e-7 = 0.00000323994 quintals
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.
What is a Grain and a Quintal?
The grain (gr) is a unit of mass in the traditional English weight systems (Avoirdupois, Troy, and Apothecaries'). It was originally based on the weight of a single grain of barley. It is defined as exactly 64.79891 milligrams (or 1/7000 of an avoirdupois pound).
The quintal (q) is a historical unit of mass, typically defined as 100 units of either kilograms or pounds, depending on the context. The metric quintal is precisely 100 kilograms.
Note: The Grain is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Quintal belongs to the imperial/US customary system.
History of the Grain and Quintal
The grain is one of the oldest units of mass, dating back to antiquity, using seeds (like barley or wheat) as weight standards. It formed the legal basis for English weight systems and remains defined in terms of metric units today.
The term derives from Arabic ("qinṭār") and Latin ("centenarius" meaning "containing a hundred"). It was widely used across Europe and its colonies, but its value varied significantly by region (sometimes being 100 pounds, sometimes 100 kilograms, or other values). The metric quintal (100 kg) is the most common modern interpretation.
Common Uses for grains and quintals
Explore the typical applications for both Grain (imperial/US) and Quintal (imperial/US) to understand their common contexts.
Common Uses for grains
- Ammunition: Measuring the mass of bullets and gunpowder charges.
- Archery: Measuring the mass of arrows and arrowheads.
- Medicine & Pharmacy: Historically used in the apothecaries' system; sometimes still used for measuring dosage of certain older medications (e.g., aspirin).
- Jewelry: Used in the troy system (24 grains = 1 pennyweight).
- Reloading: Handloading ammunition requires precise measurement in grains.
Common Uses for quintals
- Agriculture: Still used in some countries (e.g., India, Brazil, France) for trading grain, coffee, and other agricultural commodities, usually referring to the 100 kg metric quintal.
- Historical Context: Encountered in historical trade documents.
Frequently Asked Questions
Questions About Grain (gr)
How many grains are in an ounce (avoirdupois)?
There are 437.5 grains (gr) in 1 avoirdupois ounce (oz).
How many grains are in a pound (avoirdupois)?
There are 7,000 grains (gr) in 1 avoirdupois pound (lb).
How many milligrams are in a grain?
There are exactly 64.79891 milligrams (mg) in 1 grain (gr).
About Quintal (q)
How many kilograms are in a metric quintal?
There are exactly 100 kilograms (kg) in 1 metric quintal (q).
How does a quintal relate to a metric ton?
One metric ton (tonne, t) is equal to 10 quintals (q), as 1 tonne = 1000 kg and 1 quintal = 100 kg.
Is a quintal always 100 kg?
Not historically. While the metric quintal is 100 kg, older definitions or regional variations could refer to 100 pounds or other amounts. Context is important.
Conversion Table: Grain to Quintal
| Grain (gr) | Quintal (q) |
|---|---|
| 1 | 0 |
| 5 | 0 |
| 10 | 0 |
| 25 | 0 |
| 50 | 0 |
| 100 | 0 |
| 500 | 0 |
| 1,000 | 0.001 |
All Weight Conversions
Other Units from Weight
- Kilogram (kg)
- Gram (g)
- Milligram (mg)
- Pound (lb)
- Ounce (oz)
- Stone (st)
- Ton (metric) (t)
- Ton (US) (ton)
- Ton (UK) (long ton)
- Microgram (µg)
- Carat (ct)
- Slug (sl)
- Troy Ounce (oz t)
- Pennyweight (dwt)
- Dram (dr)
- Atomic Mass Unit (u)
- Pavan (India) (pavan)
- Kati (India) (kati)
- Masha (India) (masha)
- Dina (India) (dina)
- Pras (India) (pras)
- Lota (India) (lota)