Convert Foot Pounds (ft·lb) to Newton-meters (N·m)

1 foot-pound equals 1.35582 Newton-meters.

Formula: N·m = ft·lb × 1.35582

Foot-pound to Newton-meter Converter

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What Is a Foot-Pound?

The foot-pound (ft·lb) is the US customary unit of torque, defined as the rotational force produced by one pound-force applied at a distance of one foot from the pivot point. It is the primary torque unit used in US automotive repair, construction, and SAE engineering standards.

What Is a Newton-Meter?

The newton-meter (N·m) is the SI unit of torque. One newton-meter equals the torque from one newton of force at one meter from the pivot. It is the international standard used in European, Asian, and scientific applications.

Foot-Pounds to Newton-Meters Formula

To convert ft·lb to N·m, multiply by 1.3558179:

N·m = ft·lb × 1.3558

Worked Example

Convert 75 ft·lb to N·m: 75 × 1.3558 = 101.7 N·m. This is within the typical car wheel lug nut range (100–140 N·m).

Quick Estimation

For a rough mental conversion: multiply ft·lb by 4/3 (1.333). This gives you an answer within ~2% of exact. Example: 30 ft·lb × 4/3 = 40 N·m (exact: 40.7).

Frequently Asked Questions

How do I convert ft-lbs to Nm?

Multiply the ft·lb value by 1.3558. Example: 50 ft·lb × 1.3558 = 67.79 N·m.

What is 20 ft-lbs in Nm?

20 ft·lb × 1.3558 = 27.12 N·m. This is a common torque for spark plugs and smaller engine fasteners.

Is 1 ft-lb the same as 1 lb of force?

No. 1 ft·lb is 1 pound of force applied at 1 foot from the pivot. If you apply the same 1 lb of force at 2 feet from the pivot, you get 2 ft·lb of torque. Torque depends on both force AND distance.

Why is my torque wrench in ft-lbs but the manual says Nm?

US torque wrenches default to ft·lb (SAE standard), while many vehicle manuals use N·m (ISO). Multiply the N·m spec by 0.7376 to get ft·lb, or use our converter above.

Common Foot-pound to Newton-meter Conversions

Foot-pound to Newton-meter (Part 1)
Foot-pound to Newton-meter common conversions part 1
Foot-pound Newton-meter Actions
1 foot-pound 1.35582 Newton-meters
5 foot pounds 6.77909 Newton-meters
8 foot pounds 10.8465 Newton-meters
10 foot pounds 13.5582 Newton-meters
12 foot pounds 16.2698 Newton-meters
14 foot pounds 18.9815 Newton-meters
15 foot pounds 20.3373 Newton-meters
18 foot pounds 24.4047 Newton-meters
20 foot pounds 27.1164 Newton-meters
22 foot pounds 29.828 Newton-meters
Foot-pound to Newton-meter (Part 2)
Foot-pound to Newton-meter common conversions part 2
Foot-pound Newton-meter Actions
23 foot pounds 31.1838 Newton-meters
25 foot pounds 33.8954 Newton-meters
30 foot pounds 40.6745 Newton-meters
50 foot pounds 67.7909 Newton-meters
60 foot pounds 81.3491 Newton-meters
80 foot pounds 108.465 Newton-meters
90 foot pounds 122.024 Newton-meters
100 foot pounds 135.582 Newton-meters
150 foot pounds 203.373 Newton-meters
250 foot pounds 338.954 Newton-meters

Foot pounds to Newton-meters Conversion Table

Reference table with common foot pounds to newton-meters conversions. All values calculated with high precision.

Foot Pounds to Newton-meters Table
0.0001 to 12

Foot pounds Newton-meters Actions
0.0001 ft·lb 0.000135582 N·m
0.00025 ft·lb 0.000338954 N·m
0.0005 ft·lb 0.000677909 N·m
0.001 ft·lb 0.00135582 N·m
0.0025 ft·lb 0.00338954 N·m
0.005 ft·lb 0.00677909 N·m
0.01 ft·lb 0.0135582 N·m
0.025 ft·lb 0.0338954 N·m
0.05 ft·lb 0.0677909 N·m
0.1 ft·lb 0.135582 N·m
14 ft·lb 0.338954 N·m
12 ft·lb 0.677909 N·m

Foot Pounds to Newton-meters Table
1 to 100000

Foot pounds Newton-meters Actions
1 ft·lb 1.35582 N·m
2 12 ft·lb 3.38954 N·m
5 ft·lb 6.77909 N·m
10 ft·lb 13.5582 N·m
25 ft·lb 33.8954 N·m
50 ft·lb 67.7909 N·m
100 ft·lb 135.582 N·m
250 ft·lb 338.954 N·m
500 ft·lb 677.909 N·m
1000 ft·lb 1355.82 N·m
2500 ft·lb 3389.54 N·m
5000 ft·lb 6779.09 N·m
10000 ft·lb 13558.2 N·m
25000 ft·lb 33895.4 N·m
50000 ft·lb 67790.9 N·m
100000 ft·lb 135582 N·m

Newton-meters to Foot Pounds Table
0.001 to 5

Newton-meters Foot pounds Actions
0.001 N·m 0.000737562 ft·lb
0.0025 N·m 0.00184391 ft·lb
0.005 N·m 0.00368781 ft·lb
0.01 N·m 0.00737562 ft·lb
0.025 N·m 0.0184391 ft·lb
0.05 N·m 0.0368781 ft·lb
0.1 N·m 0.0737562 ft·lb
14 N·m 0.184391 ft·lb
12 N·m 0.368781 ft·lb
1 N·m 0.737562 ft·lb
2 12 N·m 1.84391 ft·lb
5 N·m 3.68781 ft·lb

Newton-meters to Foot Pounds Table
10 to 1000000

Newton-meters Foot pounds Actions
10 N·m 7.37562 ft·lb
25 N·m 18.4391 ft·lb
50 N·m 36.8781 ft·lb
100 N·m 73.7562 ft·lb
250 N·m 184.391 ft·lb
500 N·m 368.781 ft·lb
1000 N·m 737.562 ft·lb
2500 N·m 1843.91 ft·lb
5000 N·m 3687.81 ft·lb
10000 N·m 7375.62 ft·lb
25000 N·m 18439.1 ft·lb
50000 N·m 36878.1 ft·lb
100000 N·m 73756.2 ft·lb
250000 N·m 184391 ft·lb
500000 N·m 368781 ft·lb
1000000 N·m 737562 ft·lb

Looking for the reverse? Convert Newton-meter to Foot-pound

Conversion factors verified against NIST, BIPM 1 N·m by definition (SI, BIPM). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.