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C-20 · UTILITIES · SI · IMPERIAL
Unit converter
Force, stress, moment, energy, power, temperature and the other quantities on an engineer's desk — converted from exact definitions, with the factor written out and every unit of the quantity shown at once.
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v1.0.0 · verified against 78 NIST SP 811 factors
FORCE
1 kN≈224.809 lbf
1 kN ≈ 224.8089431 lbf1 lbf ≈ 0.004448221615 kN
In the SI unit: 1 000 N
| Value | Unit | Name |
|---|---|---|
| 1 000 | newton | |
| 1 | kilonewton | |
| 0.001 | meganewton | |
| 100 000 000 | dyne | |
| ≈ 101.972 | kilogram-force | |
| ≈ 0.101972 | tonne-force | |
| ≈ 224.809 | pound-force | |
| ≈ 0.224809 | kip (1000 lbf) | |
| ≈ 0.112404 | short ton-force (2000 lbf) |
- Uses standard gravity g_n = 9.80665 m/s², not the local value.
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HOW IT'S CALCULATED · WITH YOUR NUMBERS
Step by step, with your numbers
- 01Unit definitions
1 kN = 1 000 N (exact) 1 lbf = 0.45359237 kg × 9.80665 m/s² = 4.4482216152605 N (exact)Each unit is written in the SI unit of the quantity, N, from its defining constants. - 02To the SI unit, N
1 kN × 1 000 N/kN = 1 000 NMultiply by what one source unit is worth. - 03To pound-force
1 000 N ÷ 4.4482216152605 N/lbf ≈ 224.809 lbfDivide by what one target unit is worth. Rounded once, here, to 6 significant figures. - 04Conversion factor
1 kN ≈ 224.8089431 lbf 1 lbf ≈ 0.004448221615 kNThe same two steps with a value of 1 — the number to keep in a spreadsheet.
Reference: NIST Special Publication 811 (2008), Guide for the Use of the International System of Units (SI), Appendix B — conversion factors.
BEYOND THE UNITS