Utilization rate calculator
Enter available and billable hours for a person or a team to see the utilization rate and the non-billable hours. Add an hourly rate to see what reaching your target would be worth.
Your team
Use one person or the whole team. Hours are per person per week, as an average.
Your utilization
6 people, 37.5 hrs available each a week.
Utilization rate
Non-billable hours a week, across the team
Billable hours a week, across the team
Non-billable hours a week, each
Billed a week at 69.3%
Billed a week at 75.0%
Reaching 75.0% is worth £828.75 a week, or £38,122.50 over 46 working weeks, at the same rate.
26 hrs ÷ 37.5 hrs × 100 = 69.3%
Utilization tells you how much. The job board tells you where.
In Zigaflow every job has an assigned team member and a deadline, and the job board filters by team member, so you can see who is carrying what.
See the job boardHow to calculate utilization percentage
Utilization is the share of the hours someone is available to work that are spent on work you can charge for.
Per person or across a team - add up the hours first, then divide.
Someone available for 37.5 hours a week who bills 26 of them is at 26 ÷ 37.5 × 100 = 69.3%. The other 11.5 hours go on quoting, admin, travel, internal meetings and chasing - work the business needs, but that no customer pays for directly.
Decide what counts before you measure
The number is only comparable month to month if the two inputs are defined the same way each time. Settle these once and write them down:
- Available hours: contracted hours, or contracted hours less holiday, sickness and training. The second gives a higher rate for the same work.
- Billable hours: time charged to a customer, or time spent on customer jobs whether or not it was all charged. Written-off time changes the answer.
- Whose hours: a rate that includes managers and sales staff reads lower than one for the delivery team alone.
What a higher rate is worth
Add an hourly rate and the calculator shows what the team bills a week at its current rate and at your target, and the difference over your working weeks. That is the ceiling, not a forecast: it assumes the extra hours can be sold at the same rate.
There is no single right utilization rate. A rate close to 100% leaves no room for quoting, training or the next customer, and what is sustainable depends on the work and the role. Set the target from your own history rather than someone else's figure.
Related terms
- Utilization rate - the definition and the ways it is measured.
See who is carrying which job
The rate tells you how much of the week is billable. The job board shows which jobs the team is working on and where each one stands.
- Assign team members and set deadlines on every job
- A job board you can filter by customer, value, team member or delivery date
- Custom job statuses that match how the work actually moves
Questions people ask
Utilization rates, what counts and what to aim for.