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Billable vs Working Hours

Compare billable hours against non-billable time in a week.

About Billable vs Working Hours

The billable ratio is the share of total working time you can charge to a client, with the remainder spent on admin, learning and uncharged work. Because only billable time earns revenue, a low utilization rate means long hours but little income at your agreed rate.

Formula

Billable vs Working Hours

Billable share = billable hours / total hours x 100

billable
Hours directly charged to clients

Worked example

With the default values below, Billable vs Working Hours returns Billable Share of 75.00%. Change any input above and every figure here is recalculated in your browser.

Inputs used

Billable hoursminimum 0
30
Non-billable hoursminimum 0
10

Results

Billable Share
75.00%
Total Working Hours
40.00
Non-Billable Share
25.00%

Step by step

  1. 1Values used
  2. 2Billable vs Working Hours
  3. 3Billable Share= 75.00
  4. 4Total Working Hours= 40.00
  5. 5Non-Billable Share= 25.00

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 2 decimal places, 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 Billable vs Working Hours calculated?

Billable share = billable hours / total hours x 100 The billable ratio is the share of total working time you can charge to a client, with the remainder spent on admin, learning and uncharged work.

Why does Billable vs Working Hours matter?

Because only billable time earns revenue, a low utilization rate means long hours but little income at your agreed rate.

What values do I need to enter?

This calculator takes 2 inputs: Billable hours, Non-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.

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Billable vs Working Hours – Calculate Billable Share