Find the weight or force in kilonewtons to be converted.
Divide the number of kilonewtons by 9.80665 to convert to metric ton-force. As an example, 25 kilonewtons divided by 9.80665 would yield 2.549291 metric ton-force.
Round the number to the same number of significant figures as the initial measurement. Significant figures are the number of digits that make up a measurement without counting any zeros to the left of the first non-zero number. As an example, 0.00036 would only have two significant figures, since you don't count the first four zeros. In the original example, 25 kilonewtons also has two significant figures; therefore, the answer should also have two significant figures. Rounding 2.549291 to two significant figures would give you 2.5 metric ton-force.