Convert Picojoules to Tons of TNT
Convert Picojoules (pJ) to Tons of TNT (t(TNT)) instantly and accurately.
Conversion Formula
t(TNT) = pJ × 2.390057361e-22
About Picojoules
A picojoule (pJ) is 10⁻¹² J - the scale of laser pulses in scientific instruments and chip-level capacitor storage. A 1 pF capacitor charged to 1 V stores exactly 0.5 pJ. Laser pulse energies in OCT and ultrafast spectroscopy are typically 1-1,000 pJ. Single-photon SNSPD detector dead-time dissipates 1-100 pJ per event. Phase-change memory cells (PCM, ReRAM) switch at 10-100 pJ per state transition, setting a lower bound on non-volatile memory energy efficiency. 1 pJ = 10⁻¹² J = 6.242 MeV.
About Tons of TNT
A ton of TNT is an energy unit defined as exactly 10⁹ thermochemical calories = 4.184 GJ. The Trinity test (first nuclear weapon, 1945) yielded ~21 kilotons TNT = 87.9 TJ. The Tsar Bomba yielded ~50 megatons TNT = 209 PJ - the largest human-made explosion in history. Hiroshima's Little Boy yielded ~15 kilotons = 62.8 TJ. The Tunguska 1908 airburst released ~10-15 megatons TNT. Earthquake magnitude 6.0 releases ~63 kilotons TNT equivalent in seismic energy. 1 t(TNT) = 4.184 GJ = 4,184 MJ = 1,162.8 kWh.
Quick Reference Table
| Picojoules (pJ) | Tons of TNT (t(TNT)) |
|---|---|
| 1 pJ | 2.39 × 10-22 t(TNT) |
| 2 pJ | 4.78 × 10-22 t(TNT) |
| 5 pJ | 1.195 × 10-21 t(TNT) |
| 10 pJ | 2.39 × 10-21 t(TNT) |
| 25 pJ | 5.975 × 10-21 t(TNT) |
| 50 pJ | 1.195 × 10-20 t(TNT) |
| 100 pJ | 2.39 × 10-20 t(TNT) |