1 tnf (ton-force (metric)) is equal to 98,066,499,997,877,360,000,000,000,000 yoctonewton. To convert from ton-force (metric) to yoctonewton, multiply by 98,066,499,997,877,360,000,000,000,000 or divide by 0.000000000000000000000000000010197162129999999.