Convert Foot-pounds-force to Kilonewton-meters
Instantly convert Foot-pounds-force (ft·lbf) to Kilonewton-meters (kN·m) with our free online calculator.
Formula: ft·lbf to kN·m — multiply by 0.00135582
Reference Table
| Foot-pounds-force (ft·lbf) | Kilonewton-meters (kN·m) |
|---|---|
| 1 | 0.00135582 |
| 5 | 0.0067791 |
| 10 | 0.0135582 |
| 25 | 0.0338955 |
| 50 | 0.067791 |
| 100 | 0.135582 |
How to Convert Foot-pounds-force to Kilonewton-meters
Formula
To convert Foot-pounds-force (ft·lbf) to Kilonewton-meters (kN·m): multiply by 0.00135582
Step-by-Step
- Start with your value in Foot-pounds-force (ft·lbf).
- Multiply by 0.00135582 to perform the conversion.
- The result is your value expressed in Kilonewton-meters (kN·m).
Conversion Factor
1 ft·lbf = 0.00135582 kN·m
Reverse Factor
1 kN·m = 737.561 ft·lbf
Worked Example
Convert 25 Foot-pounds-force to Kilonewton-meters: 25 ft·lbf = 0.0338955 kN·m
About Foot-pound-force (ft·lbf)
An imperial unit of torque equal to one pound-force applied at a one-foot lever arm (about 1.356 N·m). Foot-pounds are the dominant US torque unit — automotive service manuals, wheel-lug torque specs, US-made torque wrenches, and firearms barrel-threading all list ft·lbf. A typical car's lug nut spec is 80–100 ft·lbf. Careful: ft·lbf as torque should not be confused with ft·lb as energy (same name, different dimension).
About Kilonewton-meter (kN·m)
A metric unit of torque equal to 1,000 newton-meters. Kilonewton-meters are used for large-scale engineering: industrial turbines, large diesel engines (ship propulsion, locomotives), wind-turbine main shaft torque (a modern 5 MW wind turbine produces ~3,800 kN·m), structural moments on reinforced concrete beams, and crankshaft loads in heavy equipment. Structural design codes (Eurocode, ASCE) use kN·m for bending moments.
Quick Facts
- 1 Foot-pound-force equals 0.00135582 Kilonewton-meters
- 1 Kilonewton-meter equals 737.561 Foot-pounds-force
- Foot-pound-force is a unit of torque
- Kilonewton-meter is a unit of torque
- This conversion is commonly used in automotive maintenance, structural engineering, and manufacturing
- The Foot-pound-force belongs to the imperial system
- The Kilonewton-meter belongs to the metric system
Common Foot-pound-force to Kilonewton-meter Conversions
| Foot-pounds-force (ft·lbf) | Kilonewton-meters (kN·m) |
|---|---|
| 0.01 | 0.0000135582 |
| 0.1 | 0.000135582 |
| 0.25 | 0.000338955 |
| 0.5 | 0.00067791 |
| 1 | 0.00135582 |
| 2 | 0.00271164 |
| 3 | 0.00406746 |
| 5 | 0.0067791 |
| 10 | 0.0135582 |
| 15 | 0.0203373 |
| 20 | 0.0271164 |
| 25 | 0.0338955 |
| 50 | 0.067791 |
| 75 | 0.101686 |
| 100 | 0.135582 |
| 250 | 0.338955 |
| 500 | 0.67791 |
| 1000 | 1.35582 |
| 5000 | 6.7791 |
| 10000 | 13.5582 |
Understanding Foot-pounds-force
The Foot-pound-force (symbol: ft·lbf) is a unit of torque. An imperial unit of torque equal to one pound-force applied at a one-foot lever arm (about 1.356 N·m). Foot-pounds are the dominant US torque unit — automotive service manuals, wheel-lug torque specs, US-made torque wrenches, and firearms barrel-threading all list ft·lbf. A typical car's lug nut spec is 80–100 ft·lbf. Careful: ft·lbf as torque should not be confused with ft·lb as energy (same name, different dimension).
It belongs to the imperial measurement system.
Foot-pounds-force are commonly used in automotive maintenance, structural engineering, and manufacturing.
Understanding Kilonewton-meters
The Kilonewton-meter (symbol: kN·m) is a unit of torque. A metric unit of torque equal to 1,000 newton-meters. Kilonewton-meters are used for large-scale engineering: industrial turbines, large diesel engines (ship propulsion, locomotives), wind-turbine main shaft torque (a modern 5 MW wind turbine produces ~3,800 kN·m), structural moments on reinforced concrete beams, and crankshaft loads in heavy equipment. Structural design codes (Eurocode, ASCE) use kN·m for bending moments.
It belongs to the metric measurement system.
Kilonewton-meters are commonly used in automotive maintenance, structural engineering, and manufacturing.
Why Convert Foot-pounds-force to Kilonewton-meters?
Converting between Foot-pounds-force and Kilonewton-meters is a frequent requirement for engineers, scientists, and students working with torque values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate torque conversion is essential.
Frequently Asked Questions
How do I convert Foot-pounds-force to Kilonewton-meters?
An imperial unit of torque equal to one pound-force applied at a one-foot lever arm (about 1. To convert Foot-pounds-force to Kilonewton-meters, multiply by 0.00135582. For example, 25 ft·lbf equals 0.0338955 kN·m.
How many Kilonewton-meters are in 1 Foot-pound-force?
There are 0.00135582 Kilonewton-meters in 1 Foot-pound-force.
How many Foot-pounds-force are in 1 Kilonewton-meter?
There are 737.561 Foot-pounds-force in 1 Kilonewton-meter.
What is the formula for Foot-pound-force to Kilonewton-meter conversion?
The formula is: multiply by 0.00135582. This means 1 ft·lbf = 0.00135582 kN·m.
Is a Foot-pound-force bigger than a Kilonewton-meter?
Yes. One Foot-pound-force is larger than one Kilonewton-meter because 1 ft·lbf equals 0.00135582 kN·m, which is less than 1.
When do you need to convert between Foot-pounds-force and Kilonewton-meters?
A metric unit of torque equal to 1,000 newton-meters. Foot-pound-force and Kilonewton-meter are both torque units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.