$9.99
About
The GTP API Gravity Calculator v2 (Developed 2025) from Gammon Technical Products, Inc. provides users the ability to determine corrected API at 60 Deg F for jet, gasoline, and diesel fuels. The calculator is a digital version of our GTP-3012-1A and GTP-2727EF slide calculators and it also is capable of calculating the total weight of the fuel.
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What's New in GTP API Gravity Calculator2
1.3
June 20, 2025
We have made updates for UI misbehaviour during Dark Mode.
