Skip to main content
Convert Calc

Milliwatt to BTU/hour Converter

Enter a value to instantly convert between power units.

Precision4 dp

1 Milliwatt = 0.0034 BTU/hour

Key Formulas

Kilowatt → Horsepower (mech)

hp = kW × 1.34102

Horsepower (mech) → Kilowatt

kW = hp × 0.7457

Watt → Kilowatt

kW = W × 0.001

Kilowatt → Watt

W = kW × 1000

Formula

BTU/h = mW × 0.003412142

Source: NIST SP 811, Table B.8

00
Milliwatt to BTU/hour conversion table
Milliwatt (mW) BTU/hour (BTU/h)
1 0.00341214
10 0.03412142
100 0.34121416
1,000 3.4121
10,000 34.1214
100,000 341.2142