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Metric Ton-force to Poundal Converter

Convert metric tons-force to poundals with our free online force converter.

Quick Answer

1 Metric Ton-force = 70931.635284 poundals

Formula: Metric Ton-force Ɨ conversion factor = Poundal

Use the calculator below for instant, accurate conversions.

Our Accuracy Guarantee

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.

Last verified: December 2025Reviewed by: Sam Mathew, Software Engineer

Metric Ton-force to Poundal Calculator

How to Use the Metric Ton-force to Poundal Calculator:

  1. Enter the value you want to convert in the 'From' field (Metric Ton-force).
  2. The converted value in Poundal will appear automatically in the 'To' field.
  3. Use the dropdown menus to select different units within the Force category.
  4. Click the swap button (ā‡Œ) to reverse the conversion direction.
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How to Convert Metric Ton-force to Poundal: Step-by-Step Guide

Converting Metric Ton-force to Poundal involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

pdl = tf Ɨ 70931.6

Example Calculation:

1 tf = 70931.635284 pdl

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.

Need to convert to other force units?

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šŸ“‹ Unit Symbols

Copy tf & pdl symbols

What is a Metric Ton-force and a Poundal?

Metric ton-force (tf) is the force exerted by one metric ton (tonne = 1,000 kg) under standard gravity (9.80665 m/sĀ²).

Formula: 1 tf = 1,000 kg Ɨ 9.80665 m/sĀ²

Conversions:

  • 1 tf = 9,806.65 N (newtons)
  • 1 tf = 9.80665 kN (kilonewtons)
  • 1 tf = 2,204.62 lbf (pounds-force)
  • 1 tf = 1,000 kgf (kilogram-force)
  • 1 tf = 0.00980665 MN (meganewtons)
  • 1 tf = 2.20462 kip

The poundal (pdl) is the force to accelerate 1 pound mass at 1 ft/sĀ². It is an absolute unit in the FPS system.

Formula: F = ma where F is in poundals, m in pounds, a in ft/sĀ²

Conversions:

  • 1 pdl = 0.138255 N (newtons)
  • 1 pdl = 0.031081 lbf (pound-force)
  • 1 pdl = 14.098 gf (gram-force)
  • 1 pdl = 0.014098 kgf (kilogram-force)
  • 1 pdl = 138,255 dynes
  • 32.174 pdl = 1 lbf

Note: The Metric Ton-force is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Poundal belongs to the imperial/US customary system.

History of the Metric Ton-force and Poundal

Metric ton-force emerged from the meter-kilogram-second gravitational system as a practical unit for measuring large forces in metric countries. The metric ton (tonne) equals 1,000 kilograms, making ton-force a natural extension of kilogram-force for heavy loads. Widely used in European, Asian, and Latin American engineering throughout the 20th century for crane ratings, structural loads, and industrial equipment specifications. While SI standardization favors kilonewtons, metric ton-force remains common in practical engineering contexts where the intuitive relationship to mass (1 tonne = 1 tf on Earth) provides convenience.

The poundal was introduced in 1879 by the British Association for the Advancement of Science as part of the foot-pound-second (FPS) absolute system of units. It was designed to provide a consistent force unit for physics calculations using imperial measurements, analogous to the dyne in the CGS system. The name "poundal" was created from "pound" plus the suffix "-al" to indicate it was an absolute unit rather than a gravitational unit. Despite official endorsement, the poundal never achieved widespread practical use because engineers preferred the more intuitive pound-force. By the mid-20th century, it had become largely obsolete, appearing primarily in older physics textbooks and historical engineering documents.

Common Uses and Applications: metric tons-force vs poundals

Explore the typical applications for both Metric Ton-force (imperial/US) and Poundal (imperial/US) to understand their common contexts.

Common Uses for metric tons-force

Construction Equipment: Crane capacity ratings, lifting equipment, heavy machinery.

Structural Engineering: Foundation loads, bridge pier capacity, building columns.

Marine Engineering: Ship displacement, anchor forces, mooring loads.

Industrial Equipment: Press capacity, forging equipment, material handling.

Automotive: Vehicle weight specifications, towing capacity, load ratings.

When to Use poundals

Historical Physics Textbooks: Pre-1960s physics education using FPS units.

Engineering History: Older technical papers and engineering calculations.

Academic Study: Understanding historical unit systems and conversions.

Specialized Applications: Rare modern use in contexts maintaining FPS absolute units.

Additional Unit Information

About Metric Ton-force (tf)

How do I convert metric ton-force to kilonewtons?

Formula: kN = tf Ɨ 9.80665 (approximately tf Ɨ 9.81)

Examples:

  • 1 tf = 9.81 kN
  • 5 tf = 49.0 kN
  • 10 tf = 98.1 kN
  • 100 tf = 981 kN

Quick approximation: Multiply by 10 for rough estimates.

Metric Ton-force to Kilonewtons converter ā†’

What is the difference between metric ton and metric ton-force?

Metric ton (tonne, t): Unit of MASS - measures amount of matter (1,000 kg).

Metric ton-force (tf): Unit of FORCE - measures weight or push/pull.

Relationship: On Earth at standard gravity, 1 metric ton of mass exerts 1 tf of force.

Critical distinction: On the Moon, a 1-tonne mass still has 1 tonne of mass but exerts only ~0.17 tf due to lower gravity. In space (zero gravity), it exerts 0 tf but retains 1 tonne of mass.

Engineering note: Always specify whether you mean mass (t) or force (tf) in technical documentation.

How many metric ton-force equal one US ton-force?

1 US ton-force (short ton-force) = 0.907 metric ton-force

Quick conversions:

  • 1 US tonf = 0.907 tf = 8.90 kN
  • 1 UK tonf (long ton) = 1.016 tf = 9.96 kN
  • 1 metric tf = 1.102 US tonf
  • 1 metric tf = 0.984 UK tonf

Comparison:

  • US ton = 2,000 lb = 907.2 kg
  • UK ton = 2,240 lb = 1,016 kg
  • Metric ton = 1,000 kg

US Ton-force to Metric Ton-force converter ā†’

When should I use metric ton-force instead of kilonewtons?

Use metric ton-force when:

  • Working in countries using metric tons for mass
  • Heavy equipment ratings (cranes, forklifts)
  • Vehicle weight specifications in metric countries
  • Marine vessel displacement
  • Following local engineering conventions

Use kilonewtons when:

  • SI unit compliance required
  • International engineering projects
  • Scientific and academic contexts
  • Modern structural engineering software
  • Technical publications

Note: 1 tf ā‰ˆ 10 kN provides easy mental conversion. Many engineers use both units interchangeably depending on context.

Convert metric ton-force to other force units ā†’

About Poundal (pdl)

How do I convert poundals to newtons?

Formula: N = pdl Ɨ 0.138255

Examples:

  • 1 pdl = 0.138 N
  • 10 pdl = 1.38 N
  • 32.2 pdl = 4.45 N (1 lbf)
  • 100 pdl = 13.8 N

Quick approximation: Multiply by 0.14 for rough conversion.

Poundals to Newtons converter ā†’

How many poundals equal one pound-force?

1 pound-force = 32.174 poundals

Quick conversions:

  • 1 lbf = 32.2 pdl
  • 5 lbf = 161 pdl
  • 10 lbf = 322 pdl
  • 100 lbf = 3,217 pdl

Reverse: 1 pdl = 0.031081 lbf

The factor 32.174 is Earth's gravitational acceleration (32.174 ft/sĀ²), explaining why 1 pound of mass weighs 32.2 poundals.

Pounds-force to Poundals converter ā†’

What is the difference between poundals and pounds-force?

Poundal (pdl): ABSOLUTE unit - force to accelerate 1 lb at 1 ft/sĀ²

  • Independent of gravity
  • Used in F = ma calculations
  • 1 lb mass weighs 32.2 pdl on Earth

Pound-force (lbf): GRAVITATIONAL unit - weight of 1 lb mass in Earth gravity

  • Depends on Earth's gravity
  • Practical for engineering
  • 1 lb mass weighs 1 lbf on Earth

Example: To accelerate a 10 lb object at 5 ft/sĀ²:

  • Force needed: 50 poundals (using F = ma)
  • Or equivalently: 1.55 pounds-force

This confusion is why poundal failed and pound-force prevailed.

Why is the poundal obsolete?

Non-intuitive: 1 lb mass doesn't weigh 1 poundal (weighs 32.2 pdl).

Pound-force won: Engineers preferred lbf where 1 lb mass = 1 lbf on Earth.

Metric adoption: Newton became international standard (SI unit).

Educational shift: Physics courses moved to SI units or used lbf.

No practical advantage: Created more confusion than benefit.

Historical only: Appears only in old textbooks and historical documents.

Today, use newtons (SI) or pounds-force (US engineering), not poundals.

Convert poundals to other force units ā†’

Conversion Table: Metric Ton-force to Poundal

Metric Ton-force (tf)Poundal (pdl)
0.535,465.818
170,931.635
1.5106,397.453
2141,863.271
5354,658.176
10709,316.353
251,773,290.882
503,546,581.764
1007,093,163.528
25017,732,908.821
50035,465,817.642
1,00070,931,635.284

People Also Ask

How do I convert Metric Ton-force to Poundal?

To convert Metric Ton-force to Poundal, enter the value in Metric Ton-force in the calculator above. The conversion will happen automatically. Use our free online converter for instant and accurate results. You can also visit our force converter page to convert between other units in this category.

Learn more ā†’

What is the conversion factor from Metric Ton-force to Poundal?

The conversion factor depends on the specific relationship between Metric Ton-force and Poundal. 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 Poundal back to Metric Ton-force?

Yes! You can easily convert Poundal back to Metric Ton-force by using the swap button (ā‡Œ) in the calculator above, or by visiting our Poundal to Metric Ton-force converter page. You can also explore other force conversions on our category page.

Learn more ā†’

What are common uses for Metric Ton-force and Poundal?

Metric Ton-force and Poundal are both standard units used in force measurements. They are commonly used in various applications including engineering, construction, cooking, and scientific research. Browse our force converter for more conversion options.

For more force conversion questions, visit our FAQ page or explore our conversion guides.

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šŸ“š How to Convert Units

Step-by-step guide to unit conversion with practical examples.

šŸ”¢ Conversion Formulas

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āš–ļø Metric vs Imperial

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āš ļø Common Mistakes

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View All Guides ā†’

All Force Conversions

Newton to MillinewtonNewton to KilonewtonNewton to MeganewtonNewton to DyneNewton to Pound-forceNewton to Kilogram-forceNewton to Gram-forceNewton to Metric Ton-forceNewton to US Ton-forceNewton to UK Ton-forceNewton to PoundalNewton to Ounce-forceNewton to KipMillinewton to NewtonMillinewton to KilonewtonMillinewton to MeganewtonMillinewton to DyneMillinewton to Pound-forceMillinewton to Kilogram-forceMillinewton to Gram-forceMillinewton to Metric Ton-forceMillinewton to US Ton-forceMillinewton to UK Ton-forceMillinewton to PoundalMillinewton to Ounce-forceMillinewton to KipKilonewton to NewtonKilonewton to MillinewtonKilonewton to MeganewtonKilonewton to DyneKilonewton to Pound-forceKilonewton to Kilogram-forceKilonewton to Gram-forceKilonewton to Metric Ton-forceKilonewton to US Ton-forceKilonewton to UK Ton-forceKilonewton to PoundalKilonewton to Ounce-forceKilonewton to KipMeganewton to NewtonMeganewton to MillinewtonMeganewton to KilonewtonMeganewton to DyneMeganewton to Pound-forceMeganewton to Kilogram-forceMeganewton to Gram-forceMeganewton to Metric Ton-forceMeganewton to US Ton-forceMeganewton to UK Ton-forceMeganewton to PoundalMeganewton to Ounce-forceMeganewton to KipDyne to NewtonDyne to MillinewtonDyne to KilonewtonDyne to MeganewtonDyne to Pound-forceDyne to Kilogram-forceDyne to Gram-forceDyne to Metric Ton-forceDyne to US Ton-forceDyne to UK Ton-forceDyne to PoundalDyne to Ounce-forceDyne to KipPound-force to NewtonPound-force to MillinewtonPound-force to KilonewtonPound-force to MeganewtonPound-force to DynePound-force to Kilogram-forcePound-force to Gram-forcePound-force to Metric Ton-forcePound-force to US Ton-forcePound-force to UK Ton-forcePound-force to PoundalPound-force to Ounce-forcePound-force to KipKilogram-force to NewtonKilogram-force to MillinewtonKilogram-force to KilonewtonKilogram-force to MeganewtonKilogram-force to DyneKilogram-force to Pound-forceKilogram-force to Gram-forceKilogram-force to Metric Ton-forceKilogram-force to US Ton-forceKilogram-force to UK Ton-forceKilogram-force to PoundalKilogram-force to Ounce-forceKilogram-force to KipGram-force to NewtonGram-force to MillinewtonGram-force to KilonewtonGram-force to MeganewtonGram-force to DyneGram-force to Pound-forceGram-force to Kilogram-forceGram-force to Metric Ton-forceGram-force to US Ton-forceGram-force to UK Ton-forceGram-force to PoundalGram-force to Ounce-forceGram-force to KipMetric Ton-force to NewtonMetric Ton-force to MillinewtonMetric Ton-force to KilonewtonMetric Ton-force to MeganewtonMetric Ton-force to DyneMetric Ton-force to Pound-forceMetric Ton-force to Kilogram-forceMetric Ton-force to Gram-forceMetric Ton-force to US Ton-forceMetric Ton-force to UK Ton-forceMetric Ton-force to Ounce-forceMetric Ton-force to KipUS Ton-force to NewtonUS Ton-force to MillinewtonUS Ton-force to KilonewtonUS Ton-force to Meganewton

Other Force Units and Conversions

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Verified Against Authority Standards

All conversion formulas have been verified against international standards and authoritative sources to ensure maximum accuracy and reliability.

NIST Reference on Constants, Units and Uncertainty

National Institute of Standards and Technology ā€” Fundamental physical constants and unit conversions

BIPM SI Units

Bureau International des Poids et Mesures ā€” International System of Units (SI) definitions and standards

ISO 80000

International Organization for Standardization ā€” Quantities and units international standards series

Last verified: December 3, 2025