Convert BTU per Second to Milliwatts
Convert BTU per Second (BTU/s) to Milliwatts (mW) instantly and accurately.
Conversion Formula
mW = BTU/s × 1055055.853
About BTU per Second
One BTU per second (BTU/s) ≈ 1,055 W - close to 1 kW but slightly larger. Used when heat rates are so high that per-hour or per-minute numbers become unwieldy. In fire protection engineering, large house fires peak at 500-2,000 BTU/s; industrial fires at millions of BTU/s. Blast characterisation for petrochemical safety and large industrial heat exchangers with duties of millions of BTU/h are conveniently expressed in BTU/s. Since 1 BTU/s ≈ 1.055 kW, conversion to SI is straightforward. 1 BTU/s = 1,055.056 W.
About Milliwatts
A milliwatt (mW) is 10⁻³ W - the power scale of consumer wireless communications. Wi-Fi access points transmit at 100 mW (20 dBm); mobile phones peak at up to 1,000 mW. A laser pointer emits 1-5 mW; an LED indicator 10 mW; Bluetooth Classic peaks at 100 mW. Standby power implications: 1 mW × 10⁹ devices × 1 year = 8,760 MWh - enough to power a small town, underscoring why milliwatt standby matters at scale. 1 mW = 10⁻³ W.
Quick Reference Table
| BTU per Second (BTU/s) | Milliwatts (mW) |
|---|---|
| 1 BTU/s | 1055060 mW |
| 2 BTU/s | 2110110 mW |
| 5 BTU/s | 5275280 mW |
| 10 BTU/s | 10550600 mW |
| 25 BTU/s | 26376400 mW |
| 50 BTU/s | 52752800 mW |
| 100 BTU/s | 105506000 mW |