Torque Converter (Nm, ft-lb, kgf-cm)

Convert torque between newton-metres, foot-pounds, inch-pounds, kilogram-force centimetres and metres, and dyne-centimetres with MiniWebtool’s Torque Converter. It includes real-world references for car wheels, bike pedals and fasteners plus a force-times-radius diagram.

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Help me understand MiniWebtool's Torque Converter (Nm, ft-lb, kgf-cm): https://miniwebtool.com/torque-converter-nm-ft-lb-kgf-cm/. What can I use it for, what inputs or settings do I need, and how do I use it and understand the output? Walk me through one simple example. Use this page as your source and answer in English.

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Torque Converter (Nm, ft-lb, kgf-cm)Try it now — free ▼

100 N·m is 73.7562 ft·lb or 1,019.72 kgf·cm

Enter a torque value and pick its unit. The result converts it to every other torque unit.

⚡ Quick Presets

📊 Torque Value

📐 From Unit

Embed Torque Converter (Nm, ft-lb, kgf-cm) Widget

About Torque Converter (Nm, ft-lb, kgf-cm)

The Torque Converter instantly converts torque values between every common unit — Newton-meter (N·m), foot-pound (ft·lb), inch-pound (in·lb), kilogram-force centimeter (kgf·cm), kilogram-force meter (kgf·m), dyne-centimeter (dyn·cm), and ounce-inch/foot. Unlike single-pair converters, this tool shows all eight units at once, includes a visual force × radius diagram, and compares your input to real-world references such as a car wheel lug nut, bike pedal, or spark plug — so you can sanity-check your value at a glance.

At a Glance

Torque Converter (Nm, ft-lb, kgf-cm) converts a torque value into eight units at once, including newton-meters, foot-pounds, inch-pounds and kilogram-force centimeters. It adds real-world torque references and a force-times-radius diagram.

Torque Converter (Nm, ft-lb, kgf-cm): features at a glance
Feature	What you get	Good for
Eight units	N·m, ft·lb, in·lb, kgf·cm, kgf·m, dyn·cm, oz·in and oz·ft. Enter one value and pick its unit to see every result together.	Specs written in different torque units
Click to copy	Click any result card to copy that value to your clipboard.	Pasting a converted figure into a document or work order
Quick presets	One-click examples include 100 N·m, 80 ft·lb, 50 in·lb, 1000 kgf·cm, 10 kgf·m, a 25 N·m spark plug and a 5 N·m bike stem.	Trying common automotive and bicycle torque values
Real-world context	Compares your value with references such as a car wheel lug nut, a bike pedal or a spark plug.	Sanity-checking a torque spec
Force x radius diagram	An animation shows torque as force times lever arm, using the equation tau = F x r.	Understanding why a longer wrench helps
Reference table	A table gives 1 N·m, ft·lb, in·lb, kgf·cm, kgf·m, dyn·cm and oz·in in N·m, ft·lb and kgf·cm.	Looking up conversion factors quickly

What is Torque?

Torque (also called moment of force) measures the rotational effort produced when a force is applied at a distance from a pivot. The defining equation is:

τ = F × r

Where τ (tau) is torque, F is the applied force, and r is the perpendicular distance (the lever arm) from the pivot to where the force acts. Doubling either the force or the lever arm doubles the torque — that's why a longer wrench loosens stubborn bolts with the same hand effort.

⚖️ Why Three "Standards"?

SI uses N·m (Newton-meter), the imperial/automotive world uses ft·lb and in·lb, and Asian manufacturing (especially servo motors and small mechanics) historically uses kgf·cm and kgf·m. All three measure the same physical quantity; they just differ in which units of force and distance they multiply.

Torque Unit Conversion Reference

Torque Converter (Nm, ft-lb, kgf-cm): Torque Unit Conversion Reference
From	To N·m	To ft·lb	To kgf·cm
1 N·m	1	0.7376	10.1972
1 ft·lb	1.3558	1	13.8255
1 in·lb	0.1130	0.0833	1.1521
1 kgf·cm	0.0981	0.0723	1
1 kgf·m	9.8067	7.2330	100
1 dyn·cm	1e-7	7.376e-8	1.020e-6
1 oz·in	0.0071	0.0052	0.0720

How to Use the Torque Converter

Enter the torque value: Type the number you want to convert. Decimals and very small/large numbers are fine.
Pick the source unit: Choose from N·m, ft·lb, in·lb, kgf·cm, kgf·m, dyn·cm, oz·in, or oz·ft.
Click Convert: All eight units appear at once. Click any card to copy that value to your clipboard.
Read the context panel: The Real-World Torque Context shows how your value compares to common applications such as a car lug nut or bike pedal — useful for sanity-checking specs.

Common Torque Specifications

Eyeglass screw: ~0.05 to 0.1 N·m (very gentle)
Smartphone or laptop screw: 0.1 to 0.3 N·m
Bicycle stem bolt: 4 to 6 N·m (35 to 53 in·lb)
Spark plug: 18 to 30 N·m (13 to 22 ft·lb)
Car oil drain plug: 25 to 40 N·m (18 to 30 ft·lb)
Car wheel lug nut: 80 to 130 N·m (60 to 100 ft·lb)
Heavy truck wheel lug nut: 400 to 600 N·m (300 to 450 ft·lb)

Always follow the manufacturer's torque specification. Under-tightening risks loosening; over-tightening can strip threads, warp parts, or snap fasteners.

Torque vs Energy: Same Units, Different Meaning

Newton-meter (N·m) is also the SI unit of energy (1 N·m = 1 joule). To prevent confusion, torque is normally written as N·m (with the dot) while energy is written as J (joule). The same applies in imperial units: torque is ft·lb or lb·ft, while energy is ft·lbf (foot-pound-force). They have the same dimensions but represent different physical quantities — torque is a vector (force × perpendicular distance), while energy is a scalar (force × parallel displacement).

Frequently Asked Questions

How do I convert Nm to ft-lb?

Divide Newton-meters by 1.3558179 to get foot-pounds. For example, 100 N·m ÷ 1.3558179 ≈ 73.76 ft·lb. To go the other direction, multiply foot-pounds by 1.3558179 to get Newton-meters.

How do I convert kgf·cm to N·m?

Multiply kgf·cm by 0.0980665 to get Newton-meters. Example: 1000 kgf·cm = 98.0665 N·m. The factor comes from 9.80665 m/s² (standard gravity) divided by 100 cm per meter.

What's the difference between ft·lb and lb·ft?

They mean the same thing — the foot-pound torque unit. Engineering texts traditionally write it as lb·ft to distinguish torque from energy (foot-pound-force, ft·lbf). In automotive and tool catalogues, ft·lb and lb·ft are used interchangeably.

What torque is needed for car wheel lug nuts?

Most passenger cars require 80 to 130 N·m (60 to 100 ft·lb). Always check your owner manual for the exact specification — under-tightening risks the wheel coming loose, while over-tightening can warp brake rotors or strip threads.

Why are inch-pounds used instead of foot-pounds for small fasteners?

Inch-pounds (in·lb) are easier to read for low-torque values. 1 ft·lb = 12 in·lb, so a bicycle stem at 4.2 ft·lb is more naturally written as 50 in·lb. Electronics, optics, and bicycle specs typically use in·lb or N·cm.

Is kg·cm the same as kgf·cm?

Yes — kg·cm is informal shorthand for kgf·cm (kilogram-force × centimeter). It is widely used in Asian markets, especially for servo motors and small mechanical components. Strictly, the kilogram is a unit of mass; kgf-cm is the technically correct notation.

Additional Resources

Reference this content, page, or tool as:

"Torque Converter (Nm, ft-lb, kgf-cm)" at https://MiniWebtool.com/torque-converter-nm-ft-lb-kgf-cm/ from MiniWebtool, https://MiniWebtool.com/

by miniwebtool team. Updated: Apr 29, 2026

Developer API available: Run this tool from your app, automation, or agent with one JSON HTTP request. View API docs

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