Conversion Factors

Force:
1kg = 2.20462lb = 9.80665N
1lb = 0.45359kg = 4.44822N
1N = 0.22481lb = 0.10197kg

Length:
1mm = 0.03937in
1in = 25.40mm

Rate:
1N/mm = 5.7101lb/in
1lb/in = 0.1751N/mm

Stress:
1N/mm² = 145.03774lb/in² = 1 x 10⁶ Pa
1lb/in² = 0.006894757N/mm² = 6894.76 Pa
1 Pa = 0.00014503774lb/in² = 1 x 10⁶ N/mm²

For more conversions, and a much better conversion calculator than we could ever provide here, try the Google Calculator (It's quite amazing!)