Test both hands
Run the same number of attempts for each hand, with the same rest time. The source protocol uses the maximum result, so Grip Benchmark is designed around your best valid reading.
Dominant hand differences are normal
A stronger dominant hand is common, but sport, work and injury history can change the pattern. Avoid reading too much into one isolated test.
Track the same value over time
If your benchmark uses the best reading from either hand, keep using that method. If you want left-right tracking, record both hands separately outside the calculator.
Use your best reading
Enter the highest clean dynamometer attempt.