convert one billion joules to tons/etc

To convert one billion joules (1,000,000,000 J) to tons, you can use the following conversions:

1 joule is equal to 2.390057361E-10 tons of TNT.

Therefore, one billion joules is equal to:

1,000,000,000 J * 2.390057361E-10 tons/J = 0.2390057361 tons

So, one billion joules is approximately equal to 0.239 tons.