What units can I use?

This calculator supports multiple unit systems. Select your preferred units from the dropdown menus next to each input field.

Newton Meter Calculator

Convert torque between newton-meters, pound-feet, pound-inches, kilogram-force centimeters, and more.

Formula shown0 inputs definedFree, no sign-up

Quick Summary

Use this when you need:

Convert torque wrench settings between N·m and lb·ft
Compare manufacturer specs that mix kgf·cm and N·m
Document engineering calculations in whichever torque unit a client prefers

You’ll get:Torque

How this is calculated

Formula:

torque_target = torque_source * (source_to_newton_meters / target_to_newton_meters)

In plain language:

Newton meters are the reference torque, so the tool multiplies by the source to N·m factor and divides by the target factor to swap units.

The formula is always visible so you can verify the math and explain your numbers to anyone who asks.

What these terms mean

Torque

Torque used in the calculation.

When to use this calculator

Convert torque wrench settings between N·m and lb·ft
Compare manufacturer specs that mix kgf·cm and N·m
Document engineering calculations in whichever torque unit a client prefers

Last updated: November 18, 2025

Torque unit conversion explained

Designers spec torque in newton-meters, but wrenches and datasheets often quote pound-feet, pound-inches, or kilogram-force centimeters. The Newton Meter Calculator treats N·m as the base value, multiplies by the exact scale factors, and hands back whichever unit your tool or supplier expects.

How the conversion works

Torque units differ only by their force and lever-arm definitions. Once expressed in newton-meters, any other unit follows:

T_{\text{target}} = T_{\text{source}} \times \frac{k_{\text{source}\to\text{N·m}}}{k_{\text{target}\to\text{N·m}}}

Useful constants include $1\,\text{lb·ft} = 1.3558179483\,\text{N·m}$ and $1\,\text{kgf·cm} = 0.0980665\,\text{N·m}$ .

Units and conversions

Unit	Symbol	Relation
Newton-meter	N·m	Base SI torque (N × m)
Pound-foot	lb·ft	$1\,\text{lb·ft} = 1.35582\,\text{N·m}$
Pound-inch	lb·in	$1\,\text{lb·in} = 0.112985\,\text{N·m}$
Ounce-inch	oz·in	$1\,\text{oz·in} = 0.00706155\,\text{N·m}$
Kilogram-force centimeter	kgf·cm	$1\,\text{kgf·cm} = 0.0980665\,\text{N·m}$

Worked examples

Impact wrench rating
Convert 125 N·m into pound-feet for a U.S. catalog spec.

T_{\text{lb·ft}} = \frac{125}{1.35582} = 92.2\,\text{lb·ft}

Result: advertise 92 lb·ft.

Reverse lookup
A torque wrench is set to 80 lb·ft. Confirm the value in newton-meters.

T_{\text{N·m}} = 80 \times 1.35582 = 108.5\,\text{N·m}

Result: dial in 108.5 N·m if you prefer SI.

Tips and pitfalls

Torque equals force times perpendicular distance; converting units does not fix a mistaken lever-arm dimension, so double-check where the load is applied.
Distinguish between static (breakaway) and dynamic torque in datasheets; unit conversions won’t reconcile the difference between those test conditions.
When using kgf·cm in appliance manuals, remember it’s based on standard gravity; do not treat kilograms as mass in the same equation.
Keep at least three significant figures when moving between SI and imperial torque so you don’t exceed a fastener’s tolerance band.

References and further reading

Frequently Asked Questions

Was this calculator helpful?

Your feedback helps us improve calculators for everyone.

Found an error?

Report incorrect formulas, unit conversions, or worked examples.

Report an issue

Calculator info

Version:: v1.0.0
Sensitivity:: low

Last updated: November 18, 2025

Torque unit conversion explained

How the conversion works

Torque units differ only by their force and lever-arm definitions. Once expressed in newton-meters, any other unit follows:

T_{\text{target}} = T_{\text{source}} \times \frac{k_{\text{source}\to\text{N·m}}}{k_{\text{target}\to\text{N·m}}}

Useful constants include $1\,\text{lb·ft} = 1.3558179483\,\text{N·m}$ and $1\,\text{kgf·cm} = 0.0980665\,\text{N·m}$ .

Units and conversions

Unit	Symbol	Relation
Newton-meter	N·m	Base SI torque (N × m)
Pound-foot	lb·ft	$1\,\text{lb·ft} = 1.35582\,\text{N·m}$
Pound-inch	lb·in	$1\,\text{lb·in} = 0.112985\,\text{N·m}$
Ounce-inch	oz·in	$1\,\text{oz·in} = 0.00706155\,\text{N·m}$
Kilogram-force centimeter	kgf·cm	$1\,\text{kgf·cm} = 0.0980665\,\text{N·m}$

Worked examples

Impact wrench rating
Convert 125 N·m into pound-feet for a U.S. catalog spec.

T_{\text{lb·ft}} = \frac{125}{1.35582} = 92.2\,\text{lb·ft}

Result: advertise 92 lb·ft.

Reverse lookup
A torque wrench is set to 80 lb·ft. Confirm the value in newton-meters.

T_{\text{N·m}} = 80 \times 1.35582 = 108.5\,\text{N·m}

Result: dial in 108.5 N·m if you prefer SI.

Tips and pitfalls

Torque equals force times perpendicular distance; converting units does not fix a mistaken lever-arm dimension, so double-check where the load is applied.
Distinguish between static (breakaway) and dynamic torque in datasheets; unit conversions won’t reconcile the difference between those test conditions.
When using kgf·cm in appliance manuals, remember it’s based on standard gravity; do not treat kilograms as mass in the same equation.
Keep at least three significant figures when moving between SI and imperial torque so you don’t exceed a fastener’s tolerance band.

Quick Summary

Calculator Tool

How this is calculated

What these terms mean

Torque

When to use this calculator

Torque unit conversion explained

How the conversion works

Units and conversions

Worked examples

Tips and pitfalls

References and further reading

Frequently Asked Questions

Related Calculators

Acreage Calculator

Acres to Hectares Converter

Acres to Square Feet Converter

Angle Conversion Calculator

Angstrom to nm converter

Area Converter

Was this calculator helpful?

Found an error?

Calculator info

Torque unit conversion explained

How the conversion works

Units and conversions

Worked examples

Tips and pitfalls

References and further reading

Frequently Asked Questions

Related Calculators

Acreage Calculator

Acres to Hectares Converter

Acres to Square Feet Converter

Angle Conversion Calculator

Angstrom to nm converter

Area Converter

Was this calculator helpful?

Found an error?

Calculator info