What this converter does
This converter turns kip-feet into kilonewton-metres and back instantly. It also covers N·m, lb·ft and kip·in — every pair uses an exact fixed factor. Type a value, pick your units, and read the result as you type.
A kip-foot is 1.3558 kN·m. US design uses kip·ft; SI codes use kN·m. For the force itself, see the kip to kN 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 100 kip·ft to kN·m.
1 kip·ft = 1.35582 kN·m100 × 1.35582 = 135.6 kN·mSo a 100 kip·ft moment is about 135.6 kN·m.
The units in this example
A US moment unit — one kip at a one-foot lever arm — used for beam, column and connection moments.
- 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
The SI moment unit — a kilonewton at a one-metre arm — standard in Eurocode and most structural design worldwide.
- 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