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Utilisation Rate Calculator

Calculate utilisation rate based on available hours and billable or productive hours to understand how efficiently time is being used.

Your Details

Overview

A utilisation rate calculator helps you measure how much of your available working time is being used productively or billably. Enter your total available hours, utilised hours, and hourly rate to estimate your utilisation percentage, unused time, and the value of utilised work.

How it works

The calculator divides utilised hours by total available hours and multiplies the result by 100 to show a utilisation percentage. It also subtracts utilised hours from total hours to show idle time. If you enter an hourly rate, it multiplies that rate by utilised hours to estimate the value generated during the period.

How to use this calculator

  1. 1Enter the total available hours for your chosen period.
  2. 2Add the number of hours that were utilised productively or billably.
  3. 3Enter the hourly rate for those utilised hours.
  4. 4Choose the period that matches your hours.
  5. 5Review your utilisation rate, idle hours, and estimated utilised value.

Example Calculation

Total Available Hours

160

Utilised Hours

120

Hourly Rate

$75

Period

monthly

Utilisation Rate

75.0%

If a team member had 160 available hours in a month and 120 were utilised at 75 per hour, the utilisation rate would be 75.0%, with 40 idle hours and an estimated utilised value of 9000.00.

Frequently asked questions

What does this utilisation rate calculator estimate?

It estimates the percentage of available hours that were used productively or billably, along with unused hours and the estimated value of utilised time.

How do you calculate utilisation rate?

Utilisation rate is calculated by dividing utilised hours by total available hours and multiplying by 100.

What counts as utilised hours?

Utilised hours usually include productive, billable, or assignment-related work, depending on how your business defines utilisation.

Why are idle hours useful to track?

Idle hours can help highlight spare capacity, scheduling gaps, or opportunities to improve workload planning.

Can I use this calculator for employees, freelancers, or teams?

Yes. You can use it for individuals or teams as long as total hours and utilised hours are measured consistently for the same period.

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Assumptions and warnings

Assumptions

  • Utilised hours and total available hours are measured over the same period.
  • Utilisation rate is calculated as utilised hours divided by total available hours.
  • The hourly rate is assumed to be consistent across all utilised hours.
  • This calculator provides a simple estimate and does not account for differences in task value or efficiency.