TORQUE UNIT REFERENCE
Nm to ft lb Converter
One newton-meter equals 0.7376 foot-pounds. To convert Nm to ft lb, multiply the newton-meter value by 0.737562. To convert the other way, multiply foot-pounds by 1.35582. The two figures describe the same torque; only the unit changes.
TORQUE UNITS EXPLAINED
What Nm and ft lb Mean
Two units, one physical quantity. Understand each one and the conversion becomes a formality.
Nm —
Newton-Meter
The SI unit of torque. One newton of force applied one meter from the axis.
ft-lb —
Foot-Pound
The imperial equivalent. One pound-force applied one foot from the axis.
Related
Units
One ft-lb equals 12 in-lb, and one Nm equals 0.101972 kg-m.
Conversion
Authority
The factors on this page follow the conversion values published by NIST and the BIPM definition of the SI units.
Spec
Practice
Metric specs follow ISO / DIN and are written in Nm. Imperial specs follow SAE and are written in ft-lb or in-lb.
THE SAME TORQUE, TWO SPECS
A spec that reads 100 Nm in a European manual reads
73.76 ft-lb in a North American one.
EUROPEAN MANUAL
100 Nm
ISO / DIN practice
≡
NORTH AMERICAN MANUAL
73.76 ft-lb
SAE practice
A factory that assembles for both markets prints both figures on the specification sheet, so the customer never has to convert at the bench.
TORQUE UNIT CONVERTER
Nm to ft lb Converter
Convert torque between newton-meters and foot-pounds using the exact factors 1 Nm = 0.737562 ft-lb and 1 ft-lb = 1.35582 Nm. The result is returned in Nm, ft-lb, in-lb and kg-m.
INPUT VALUE
Torque to Convert
Nm
Enter the torque in newton-meters.
CONVERTED RESULT
Live Result
Torque in foot-pounds
73.76
ft-lb
Converted from 100 Nm using 1 Nm = 0.737562 ft-lb.
Newton-meters
100.00 Nm
Foot-pounds
73.76 ft-lb
Inch-pounds
885.07 in-lb
Kilogram-meters
10.20 kg-m
EQUATION
ft-lb = Nm × 0.737562
100 × 0.737562 = 73.76
IN
100 Nm
Input value
×
0.737562
Conversion factor
OUT
73.76 ft-lb
Converted value
Same torque, different unit.
Nm and ft-lb describe the same physical torque. A spec that reads 100 Nm in a European manual reads 73.76 ft-lb in a North American one.
CONVERSION REFERENCE
Common Torque Values
Reference conversions for common torque specs. The exact factor is 1 Nm = 0.737562 ft-lb, following the NIST and BIPM definitions of the newton-meter and the foot-pound.
Nm
ft-lb
in-lb
kg-m
10 Nm
7.38 ft-lb
88.51 in-lb
1.02 kg-m
25 Nm
18.44 ft-lb
221.27 in-lb
2.55 kg-m
50 Nm
36.88 ft-lb
442.54 in-lb
5.10 kg-m
100 Nm
73.76 ft-lb
885.07 in-lb
10.20 kg-m
150 Nm
110.63 ft-lb
1,327.61 in-lb
15.30 kg-m
200 Nm
147.51 ft-lb
1,770.15 in-lb
20.39 kg-m
TORQUE CONVERSION
Nm to ft-lb and in-lb Chart
FACTOR
1 Nm = 0.737562 ft-lb
Common newton-meter values, converted to foot-pounds and inch-pounds. Foot-pounds are shown to two decimal places; inch-pounds are rounded to the nearest whole number.
Nm → ft-lb
× 0.737562
Exact factor
Nm → in-lb
× 8.85075
Exact factor
1 ft-lb
12 in-lb
Same torque
1 Nm
0.101972
kg-m
| Nm | ft-lb | in-lb |
|---|---|---|
| 1 | 0.74 | 9 |
| 5 | 3.69 | 44 |
| 10 | 7.38 | 89 |
| 20 | 14.75 | 177 |
| 25 | 18.44 | 221 |
| 40 | 29.50 | 354 |
| 50 | 36.88 | 443 |
| 60 | 44.25 | 531 |
| 75 | 55.32 | 664 |
| 100 | 73.76 | 885 |
| 120 | 88.51 | 1,062 |
| 150 | 110.63 | 1,328 |
| 200 | 147.51 | 1,770 |
| 250 | 184.39 | 2,213 |
!
For an exact inch-pound value, multiply Nm by 8.85075. Foot-pounds shown above are rounded to two decimal places; inch-pounds are rounded to the nearest whole number for readability.
REVERSE CONVERSION
ft-lb to Nm Conversion
FORMULA
Nm = ft-lb × 1.35582
The reverse direction uses the same relationship, inverted. Values below are rounded to two decimal places.
| ft-lb | Nm |
|---|---|
| 1 | 1.36 |
| 5 | 6.78 |
| 10 | 13.56 |
| 25 | 33.90 |
| 50 | 67.79 |
| 75 | 101.69 |
| 100 | 135.58 |
| 150 | 203.37 |
| 200 | 271.16 |
| 250 | 338.95 |
UNIT DEFINITION
What Nm and ft-lb Mean
Nm and ft-lb describe the same physical quantity — torque — using two different unit systems. Understanding each one makes the conversion a formality.
METRIC
Nm · Newton-meter
The SI unit of torque. One newton of force applied one meter from the axis. Written in Nm, following ISO and DIN practice.
IMPERIAL
ft-lb · Foot-pound
The imperial equivalent. One pound-force applied one foot from the axis. Written in ft-lb or in-lb, following SAE practice.
1 ft-lb
12 in-lb
Same torque
1 Nm
0.101972
kg-m
100 Nm
73.76
ft-lb
100 Nm
885
in-lb
A factory that assembles for both markets prints
both figures on the specification sheet.
A spec that reads 100 Nm in a European manual reads 73.76 ft-lb in a North American one. Printing both means the customer never has to convert at the bench.
!
Exact conversion factors. 1 Nm = 0.737562 ft-lb and 1 ft-lb = 1.35582 Nm. These values follow the conversion factors published by NIST (US National Institute of Standards and Technology) and the BIPM definition of the SI units.
Frequently Asked Questions (FAQs)
Find answers to common questions about our hand tools, their care, and usage. If you need additional information, our customer support team is ready to assist you.
How Do You Convert Nm to ft lb?
Multiply newton-meters by 0.737562. A 100 Nm value converts to 73.76 ft-lb. To reverse, multiply foot-pounds by 1.35582.
What Is the Difference Between Nm and ft lb?
Nm, the newton-meter, is the metric (SI) unit of torque. ft-lb, the foot-pound, is the imperial unit. They measure the same quantity. One Nm equals 0.7376 ft-lb.
How Many ft lb Is 100 Nm?
100 Nm is 73.76 ft-lb, or 885 in-lb.
What Does Nm Mean on a Torque Wrench?
Nm is the metric scale on the wrench: one newton of force at one meter from the axis. If the spec is in ft-lb and the wrench is set in Nm without converting, the fastener is under- or over-tightened.
How Many in-lb Are in a ft-lb?
Twelve. One foot-pound equals 12 inch-pounds.
How Do I Set a Torque Wrench Marked in Nm to a ft-lb Spec?
Convert the ft-lb figure to Nm by multiplying by 1.35582, then set that value on the wrench. A 100 ft-lb spec becomes 135.58 Nm.