kilogram-force per millimeter
Spring constantexact by definition
The kilogram-force per millimetre is exactly 9806.65 newtons per metre. It is the spring rate unit of Japanese and older European automotive practice: coilover and suspension spring rates are catalogued in kgf/mm, and 8 kgf/mm is a common sport setting.
Watch out: Roughly, 1 kgf/mm is 56 lb/in. Suspension rates cross between kgf/mm, N/mm and lb/in in the same conversation more often than any other stiffness unit, and the three differ by factors of 9.8 and 56.
| 1 | 9,806.65 |
One kilogram-force per millimeter in every spring constant unit
| 9,806,650 | millinewton per meter (mN/m) | |
| 9,806.65 | newton per meter (N/m) | |
| 671.969 | pound-force per foot (lbf/ft) | |
| 98.0665 | newton per centimeter (N/cm) | |
| 55.9974 | pound-force per inch (lbf/in) | |
| 10 | kilogram-force per centimeter (kgf/cm) | |
| 9.80665 | kilonewton per meter (kN/m) | |
| 9.80665 | newton per millimeter (N/mm) | |
| 1 | kilogram-force per millimeter (kgf/mm)this unit | |
| 0.671969 | kip per foot (kip/ft) | |
| 0.0559974 | kip per inch (kip/in) | |
| 0.00980665 | meganewton per meter (MN/m) |
Solvers that use spring constant