Convert Attojoules to Tons of TNT
Convert Attojoules (aJ) to Tons of TNT (t(TNT)) instantly and accurately.
Conversion Formula
t(TNT) = aJ × 2.390057361e-28
About Attojoules
An attojoule (aJ) is 10⁻¹⁸ J - the scale of individual X-ray photons and superconducting qubit circuits. A 1 keV X-ray photon carries 160 aJ; a visible green photon (~550 nm) carries ~0.36 aJ. Josephson junction energies in superconducting qubits are set in tens to hundreds of aJ to achieve quantum coherence at millikelvin temperatures. XRISM's cryogenic TES X-ray spectrometer resolves individual photon energies at the hundreds-of-aJ level with ~7 eV FWHM resolution. 1 aJ = 10⁻¹⁸ J = 6.242 eV.
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
| Attojoules (aJ) | Tons of TNT (t(TNT)) |
|---|---|
| 1 aJ | 2.39 × 10-28 t(TNT) |
| 2 aJ | 4.78 × 10-28 t(TNT) |
| 5 aJ | 1.195 × 10-27 t(TNT) |
| 10 aJ | 2.39 × 10-27 t(TNT) |
| 25 aJ | 5.975 × 10-27 t(TNT) |
| 50 aJ | 1.195 × 10-26 t(TNT) |
| 100 aJ | 2.39 × 10-26 t(TNT) |