Non Billable Hours
See how many hours slip away from client-billable work.
About Non Billable Hours
Non-billable hours are the difference between total time spent and billable work, expressed as a share. Admin, meetings and training feel invisible but eat into income, so tracking their share reveals pricing pressure.
Formula
Non Billable Hours
Non-billable = total - billable; share = hours / total x 100
- billable hours
- Hours charged or attributed to a client
Worked example
With the default values below, Non Billable Hours returns Non-Billable of 8.0. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Total hoursminimum 0 h
- 50 h
- Billable hoursminimum 0 h
- 42 h
Results
- Non-Billable
- 8.0 h
- Billable Share
- 84.0%
- Non-Billable Share
- 16.0%
Step by step
- 1Values used
- 2Non Billable Hours
- 3Non-Billable= 8.0 h
- 4Billable Share= 84.0
- 5Non-Billable Share= 16.0
Assumptions and limits
- The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Non Billable Hours calculated?
Non-billable = total - billable; share = hours / total x 100 Non-billable hours are the difference between total time spent and billable work, expressed as a share.
Why does Non Billable Hours matter?
Admin, meetings and training feel invisible but eat into income, so tracking their share reveals pricing pressure.
What values do I need to enter?
This calculator takes 2 inputs: Total hours, Billable hours. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.