Convert Microwatts to BTU per Second
Convert Microwatts (µW) to BTU per Second (BTU/s) instantly and accurately.
Conversion Formula
BTU/s = µW × 9.478171203e-10
About Microwatts
A microwatt (µW) is 10⁻⁶ W - the operational power band for autonomous IoT sensors and energy-harvesting wearables. Quartz oscillators in microcontrollers consume 1-10 µW; thermoelectric wearables harvesting body heat produce 10-100 µW. NFC tags derive ~10-200 µW from the reader field. Cochlear implants and implantable glucose sensors operate at microwatt levels to minimise tissue heating. 1 µW = 10⁻⁶ W.
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.
Quick Reference Table
| Microwatts (µW) | BTU per Second (BTU/s) |
|---|---|
| 1 µW | 9.478 × 10-10 BTU/s |
| 2 µW | 1.896 × 10-9 BTU/s |
| 5 µW | 4.739 × 10-9 BTU/s |
| 10 µW | 9.478 × 10-9 BTU/s |
| 25 µW | 2.37 × 10-8 BTU/s |
| 50 µW | 4.739 × 10-8 BTU/s |
| 100 µW | 9.478 × 10-8 BTU/s |