Convert Nanowatts to Terawatts
Convert Nanowatts (nW) to Terawatts (TW) instantly and accurately.
Conversion Formula
TW = nW × 1.000000000e-21
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 Terawatts
A terawatt (TW) is 10¹² W. All of human civilisation consumes ~17-18 TW (electricity + heat + transport combined); global electricity generation alone is ~9 TW. Solar irradiance intercepted by Earth is ~174,000 TW; photosynthesis captures ~130 TW. The National Ignition Facility (NIF) fusion laser produces pulses of ~500 TW lasting nanoseconds. High-power laser facilities for nuclear physics and ICF research routinely exceed 1 TW in ultrashort pulse regimes. 1 TW = 10¹² W.
Quick Reference Table
| Nanowatts (nW) | Terawatts (TW) |
|---|---|
| 1 nW | 1 × 10-21 TW |
| 2 nW | 2 × 10-21 TW |
| 5 nW | 5 × 10-21 TW |
| 10 nW | 1 × 10-20 TW |
| 25 nW | 2.5 × 10-20 TW |
| 50 nW | 5 × 10-20 TW |
| 100 nW | 1 × 10-19 TW |