How many GJ is 10 t TNT?
10 t TNT = 41.84 GJ
It is 41.84 GJ, so saying 42 GJ is fine — rounding is within 0.5%.
And how many t TNT is 10 GJ?
10 GJ = 2.39 t TNT
Formula: GJ = t TNT × 4.184
t TNT to GJ around this value
1 t TNT4.184GJ
2 t TNT8.368GJ
3 t TNT12.552GJ
4 t TNT16.736GJ
5 t TNT20.92GJ
6 t TNT25.104GJ
7 t TNT29.288GJ
8 t TNT33.472GJ
9 t TNT37.656GJ
10 t TNT41.84GJ
11 t TNT46.024GJ
12 t TNT50.208GJ
13 t TNT54.392GJ
14 t TNT58.576GJ
15 t TNT62.76GJ
16 t TNT66.944GJ
17 t TNT71.128GJ
18 t TNT75.312GJ
19 t TNT79.496GJ
20 t TNT83.68GJ