To Convert:                 Into:                        Multiply By:
 ─────────────────────────── ──────────────────────────── ──────────────────
 watts/square inch           btu/(hour X sq. ft.)         491.677
 watts/square inch           cal., gm./(hour X sq. cm.)   133.365
 watts/square inch           ft.-lb./(minute X sq. ft.)   6372.54