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