What this converter does
This converter turns kilonewton-metres into kip-feet and back instantly. It also covers N·m, lb·ft and kip·in — every pair uses an exact fixed factor, so bending moments convert precisely. Type a value, pick your units, and read the result as you type.
One kip-foot equals 1.3558 kN·m. Moments are given in kN·m in SI codes and kip·ft in US practice. For the force itself, see the kN to kip converter.
The units it covers
Every unit measures bending moment, converting through the newton-metre with a fixed ratio.
View all units & their values
| Unit | Symbol | Value | Mainly used |
|---|---|---|---|
| Kilonewton-metre | kN·m | 1000 | SI structural moment |
| Newton-metre | N·m | 1 | SI base moment |
| Kip-foot | kip·ft | 1355.818 | US structural moment |
| Pound-foot | lb·ft | 1.35582 | Small US moment |
| Kip-inch | kip·in | 112.985 | US detailing |
The formula
Each unit has a fixed value in newton-metres, so any conversion goes through the N·m once:
result = value × factor_from ÷ factor_toWhere:
- value = the number you typed, in the “from” unit
- factor_from = the “from” unit’s value in newton-metres
- factor_to = the “to” unit’s value in newton-metres
Worked example
Convert 200 kN·m to kip-feet.
1 kip·ft = 1.35582 kN·m200 ÷ 1.35582 = 147.5 kip·ftSo a 200 kN·m moment is about 147.5 kip·ft.
The units in this example
The SI unit of bending moment used in structural design — a kilonewton of force acting at a one-metre lever arm.
- 1 kN·m = 1,000 N·m
- 1 kN·m ≈ 0.7376 kip·ft
- 1 kN·m ≈ 737.6 lb·ft
- 1 kN·m ≈ 8.851 kip·in
A US unit of moment — one kip (1,000 lbf) at a one-foot lever arm — standard for beam and connection design.
- 1 kip·ft ≈ 1.3558 kN·m
- 1 kip·ft = 12 kip·in
- 1 kip·ft = 1,000 lb·ft
- 1 kip·ft ≈ 1,355.8 N·m