Convert Therms to Nanojoules
Convert Therms (thm) to Nanojoules (nJ) instantly and accurately.
Conversion Formula
nJ = thm × 1.055055853e+17
About Therms
A therm is the US natural gas billing unit equal to exactly 100,000 BTU = 105,505,585.262 J ≈ 105.5 MJ. One CCF of average US pipeline gas contains ~1.02 therms. The EIA publishes residential gas prices in $/therm; spot prices at Henry Hub are in $/MMBTU (1 MMBTU = 10 therms). US households average 500-700 therms/year for space heating, water heating, and cooking. A 15 kW domestic boiler running 2 hours delivers ~1 therm of useful heat. 1 therm = 100,000 BTU = 105.506 MJ = 29.307 kWh = 25,200 kcal.
About Nanojoules
A nanojoule (nJ) is 10⁻⁹ J - the scale of ultrashort laser pulses, flash memory write operations, and cellular ATP reserves. A Ti:sapphire laser oscillator produces pulses of 1-20 nJ at 80 MHz. Flash NAND programming costs ~1-10 nJ/bit written; a read is ~0.1 nJ/bit. The total ATP energy stored in a single red blood cell is ~1-5 nJ. The kinetic energy of a 1 µg particle at 1.4 m/s is ~1 nJ, illustrating that nanojoules describe real nanoscale mechanical events. 1 nJ = 10⁻⁹ J.
Quick Reference Table
| Therms (thm) | Nanojoules (nJ) |
|---|---|
| 1 thm | 1.055 × 1017 nJ |
| 2 thm | 2.11 × 1017 nJ |
| 5 thm | 5.275 × 1017 nJ |
| 10 thm | 1.055 × 1018 nJ |
| 25 thm | 2.638 × 1018 nJ |
| 50 thm | 5.275 × 1018 nJ |
| 100 thm | 1.055 × 1019 nJ |