Convert 1 milliwatt to BTU/second

1 mW (milliwatt) is equal to 0.0000009478169879134401 BTU/second. To convert from milliwatt to BTU/second, multiply by 0.0000009478169879134401 or divide by 1,055,055.9999999974.

• 1 mW × 9.4781698791344E-7 = 9.4781698791344E-7 BTU/second
• 1 mW ÷ 1055056 = 9.4781698791344E-7 BTU/second