KN stands for Kilonewtoons and KIPS stands for KIP-Forces. They are both units of force. The conversion factor is as follows:

1 KN= 0.224808943 kIPS

thus

2100 KN will equal 472.09878051 KIPS

1 KN= 0.224808943 kIPS

thus

2100 KN will equal 472.09878051 KIPS