Free torque unit converter

Torque unit converter Nm, ft-lb, in-lb

Convert a torque spec between N·m, lb·ft, lb·in, kgf·m, kgf·cm and ozf·in. It converts units for fastener specs; it's not about a transmission's torque converter.

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Common specs

These are examples to try, not specs for any vehicle. Always torque to the maker's spec for the exact fastener.

100 N·m is
-

In short

To convert newton-meters to foot-pounds, divide by 1.3558: 100 N·m is 73.76 lb·ft. To go from lb·ft to N·m, multiply by 1.3558179. One lb·ft is 12 lb·in, and one kgf·m is 9.80665 N·m. This converts torque units, such as a lug nut or head bolt spec; it isn't about a transmission's torque converter.

Newton-meters to foot-pounds and inch-pounds
N·mlb·ftlb·in
5 N·m3.6944.3
10 N·m7.3888.5
14 N·m10.33123.9
15 N·m11.06132.8
20 N·m14.75177.0
25 N·m18.44221.3
30 N·m22.13265.5
35 N·m25.81309.8
40 N·m29.50354.0
44 N·m32.45389.4
45 N·m33.19398.3
50 N·m36.88442.5
55 N·m40.57486.8
60 N·m44.25531.0
65 N·m47.94575.3
70 N·m51.63619.6
75 N·m55.32663.8
77 N·m56.79681.5
80 N·m59.00708.1
90 N·m66.38796.6
100 N·m73.76885.1
110 N·m81.13973.6
120 N·m88.511062.1
125 N·m92.201106.3
130 N·m95.881150.6
135 N·m99.571194.9
140 N·m103.261239.1
150 N·m110.631327.6
160 N·m118.011416.1
170 N·m125.391504.6
180 N·m132.761593.1
190 N·m140.141681.6
196 N·m144.561734.7
200 N·m147.511770.1
220 N·m162.261947.2
250 N·m184.392212.7
255 N·m188.082256.9
270 N·m199.142389.7
298 N·m219.792637.5
300 N·m221.272655.2
350 N·m258.153097.8
400 N·m295.023540.3
450 N·m331.903982.8
500 N·m368.784425.4
540 N·m398.284779.4
600 N·m442.545310.4

lb·ft = N·m ÷ 1.3558179483; lb·in = lb·ft × 12. Rounded to 2 and 1 decimals; always use the maker's spec.

How it works

How to use the Torque Unit Converter (Nm to ft-lb)

1

Enter the spec

Type the torque value from the service information.

2

Pick its unit

N·m, lb·ft, lb·in, kgf·m, kgf·cm or ozf·in.

3

Read every unit

The value in all the other units at once, ready to copy.

What it does

What the torque unit converter (nm to ft-lb) works out

Six units

N·m, lb·ft, lb·in, kgf·m, kgf·cm and ozf·in.

Exact factors

From the exact definitions of the pound-force, foot and kilogram-force.

Sensible rounding

More decimals for small values like ozf·in, fewer for large ones.

Copy the line

One click copies the value in every unit.

Private

Runs in your browser. Nothing is uploaded.

1 lb·ft
1.3558179483 N·m (1 lbf = 4.4482216152605 N, 1 ft = 0.3048 m)
1 lb·in
0.1129848290 N·m (1/12 lb·ft)
1 kgf·m
9.80665 N·m (1 kgf = 9.80665 N); 1 kgf·cm = 0.0980665 N·m
1 ozf·in
0.0070615518 N·m (1/16 lb·in)
FAQ

Questions about the torque unit converter (nm to ft-lb)

How do I convert Nm to ft-lb?
Divide newton-meters by 1.3558 (or multiply by 0.7376). 100 N·m = 73.76 lb·ft; 140 N·m = 103.26 lb·ft.
How do I convert ft-lb to Nm?
Multiply foot-pounds by 1.3558. 80 lb·ft = 108.47 N·m; 100 lb·ft = 135.58 N·m.
What's the difference between ft-lb and in-lb?
One foot-pound is 12 inch-pounds. Small fasteners, such as valve cover or sensor bolts, are often specified in inch-pounds; 89 lb·in is about 7.4 lb·ft or 10 N·m.
Is lb·ft the same as ft·lb?
For torque, yes: both mean pound-force times feet. Engineers often write lbf·ft to keep torque apart from foot-pounds of work or energy, but the number is the same.
Is this about transmission torque converters?
No. This converts units of torque, the twisting force on a fastener or shaft. A torque converter in an automatic transmission is a fluid coupling, a different thing.
Keep going

Guides and features for this

Canned jobs and your inspection checklistHelp centerTransmission shopsBayRobinAuto repair shop safety checklistGuideGeneral auto repair shopsBayRobinAll guides on running an auto repair shopTopic guides
Sources

Where the formulas and rules come from

Checked October 2026. Conversion factors are exact from the unit definitions; always use the maker's torque spec.

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