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How to use
- Enter Total hours.
- Enter Billable hours.
- Calculate, then review the period, scope and assumptions before using the result for pricing or planning.
How it is calculated
Non-billable = total − billable; share = non-billable ÷ total × 100
Example
Out of 160 total hours with 120 billable, 40 hours are non-billable, representing 25% of work time.
Important notes
Break non-billable time into sales, administration, learning and rework; understanding the components is more useful than simply trying to reduce the total.
Worked examples and interpreting results
| Case | Calculation | Result |
|---|---|---|
| Non-billable hours | 160 − 120 | 40 |
| Share | 40 ÷ 160 × 100 | 25 % |
Frequently asked questions
Should non-billable hours be zero?
No. Administration, sales and development are usually necessary; the goal is to understand and improve them, not eliminate them entirely.
Is the result a mandatory client price?
No. It is a planning result from your inputs; final pricing depends on scope, market, contract, taxes and risk.
Should I use monthly or annual figures?
Keep all inputs on the same period so annual income is not mixed with monthly hours or expenses.