Billable Hours & Utilisation Calculator
Enter your total and billable hours (and optional rate) to see utilisation and billable revenue.
How to use this calculator
- 1Enter your total available hours for the period.
- 2Enter how many of those hours are billable to clients.
- 3See your utilisation rate — and billable revenue if you add a rate.
How the Billable Hours & Utilisation Calculator works
Utilisation is the share of your available time that actually earns money: billable hours divided by total hours. It’s the metric agencies and consultants live by, because non-billable time — admin, sales, rework — is invisible until you measure it, and it quietly determines whether your rates are high enough.
A sustainable utilisation rate is usually 70–85%, not 100%; everyone needs time for the work that doesn’t bill. Add your rate to see the revenue your billable hours produce, then take those hours straight into an invoice with Aviy.
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Create an invoice freeFrequently asked questions
What is utilisation rate?
The share of your available hours that is billable to clients: billable hours ÷ total hours × 100. It shows how much of your capacity earns revenue.
What is a good utilisation rate?
For agencies and consultants, 70–85% is often healthy — leaving room for admin, sales and rest. 100% is neither realistic nor sustainable.
Why track billable hours?
Because non-billable time is invisible until you measure it. Knowing your utilisation helps you price correctly and spot where your week actually goes.
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