Convert Nanowatts to BTU per Second
Convert Nanowatts (nW) to BTU per Second (BTU/s) instantly and accurately.
Conversion Formula
BTU/s = nW × 9.478171203e-13
About Nanowatts
A nanowatt (nW) is 10⁻⁹ W - the power scale of ultra-low-power embedded systems. Cardiac pacemakers deliver sensing pulses at nanowatt levels to preserve 7-10 year battery life. RFID tags harvest ~10-200 nW from reader fields. Solar cells in wristwatches and calculators operate on ambient indoor light yielding tens of nanowatts. A standard AA cell (13,500 J) discharged at 1 nW would last over 400 years. Neuromorphic chips target 10-100 nW per neuron-equivalent circuit. 1 nW = 10⁻⁹ 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
| Nanowatts (nW) | BTU per Second (BTU/s) |
|---|---|
| 1 nW | 9.478 × 10-13 BTU/s |
| 2 nW | 1.896 × 10-12 BTU/s |
| 5 nW | 4.739 × 10-12 BTU/s |
| 10 nW | 9.478 × 10-12 BTU/s |
| 25 nW | 2.37 × 10-11 BTU/s |
| 50 nW | 4.739 × 10-11 BTU/s |
| 100 nW | 9.478 × 10-11 BTU/s |