About the Productivity Percentage Calculator
Productive time as a share of hours worked, with output per hour.
Also known as: efficiency percentage, utilisation rate calculator, productive hours, billable percentage.
How to use this calculator
- Enter hours worked, productive hours, units completed, target output.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
productivity % = productive hours ÷ hours worked × 100
Worked example
Using the values pre-filled in the calculator above:
- Hours worked = 8
- Productive hours = 5.5
- Units completed = 22
- Target output = 30
the calculator returns:
- Productivity: 68.75%
- Productive hours: 5.5
- Unproductive hours: 2.5
- Assessment: Strong