A new parts catalog gives 35 N·m for a part on my classic car, but the original manual lists torque in kgf·m. How do I check they match?

35 N·m × 0.10197 ≈ 3.57 kgf·m. Compare that to the original manual's value — if it's close to 3.5–3.6 kgf·m, the specs agree (within normal rounding).

I've only ever used N·m torque wrenches. Why would I need kgf·m at all?

Use it to compare a modern N·m value with a manual that lists kgf·m. Converting the N·m reading means you do not need a wrench scaled in kgf·m.

Is kgf·m related to kg·m², the unit of moment of inertia?

No. kgf·m (kilogram-force meter) is a unit of torque based on force: kilograms of force, the weight of a mass under standard gravity (9.80665 m/s²). kg·m² is the SI unit for moment of inertia, which is based on mass. Service manuals that use 'kg·m' for torque mean kgf·m. Do not confuse it with mass-based units in engineering calculations.

Newton-Meters to Kilogram-Force Meters Converter

Enter a value to instantly convert between torque units.

From

Precision4 dp

1 Newton-Meter = 0.102 Kilogram-Force Meter

Key Formulas

Newton-Meter → Foot-Pound

ft·lb = N·m × 0.737562

Foot-Pound → Newton-Meter

N·m = ft·lb × 1.35582

Newton-Meter → Inch-Pound

in·lb = N·m × 8.85075

Inch-Pound → Newton-Meter

N·m = in·lb × 0.112985

Formula

kgf·m = N·m × 0.1019716213

Use this conversion to compare an N·m value with a specification given in kgf·m (also written kg·m or m·kgf).

Source: NIST SP 811, Table B.9

Reviewed by the Convert Calc editorial team · Last reviewed: 2026-10-06 · see our methodology

Frequently Asked Questions

Real-World Examples

Example value.

10 N·m = 1.02 kgf·m

Example value. Read the bolt torque in your service manual.

50 N·m = 5.1 kgf·m

Example value. Check your service manual for the nut torque.

100 N·m = 10.2 kgf·m

Example value of 25 N·m.

25 N·m = 2.55 kgf·m

nm to ft lb ft lb to nm nm to in lb in lb to nm kgf m to nm

See This in Context

Mechanics