The kilonewton (kN) equals 1,000 newtons, used in structural engineering to express building loads, bridge capacities, and material strength ratings. A typical passenger car weighs about 10–15 kN, and building codes specify design loads in kN per square meter. One kilonewton equals approximately 224.8 pound-force.

The dyne (dyn) is a centimeter-gram-second (CGS) unit of force equal to exactly 0.00001 newtons, used primarily in physics for small-scale force calculations. It represents the force needed to accelerate one gram of mass at one centimeter per second squared, and appears in surface tension and electromagnetic force measurements. One dyne equals exactly 10 micro-newtons.