How it works
Average positive rates with equal numerators, such as speeds over equal distances. This differs from averaging speeds over equal times.
H = n / Σ(1/x)
Worked example
Show example inputs and result
Positive values: 30 60.
- Result
- 40
Questions and answers
Why are some results rounded?
Results display up to 8 decimal places. Calculations use the unrounded values; very small values use scientific notation. JavaScript floating-point arithmetic can introduce tiny rounding differences.
Are my inputs sent to a server?
The calculator processes inputs in your browser. Its code does not send your values to a server.
Method reviewed: October 8, 2026 · Methods & accuracy