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UK Monthly Working Hours Calculator

Monthly-paid staff often need to know how many hours a month their contract really represents — for example when checking an hourly equivalent rate.

This calculator uses the standard payroll method of averaging 52 weeks across 12 months, and can also deduct paid holiday to show hours actually worked.

UK Monthly Working Hours Calculator

Results update as you type. Nothing you enter is stored.

5.6 weeks is the statutory minimum for a full-time worker, including bank holidays.

Results

Average hours per month
162.50 hours
Hours per year
1,950.00 hours
Weeks worked per year
52.00
Hours in a 4-week month
150.00 hours
Hours in a 5-week month
187.50 hours

Monthly figures are an average: calendar months contain between four and five weeks.

How to use this calculator

  1. Enter your contracted weekly hours.
  2. Optionally enter your paid holiday in weeks to see hours actually worked.
  3. Use the monthly average when converting a monthly salary to an hourly rate.

How the calculation works

  • Monthly hours = weekly hours × 52 ÷ 12, because a calendar month is longer than four weeks.
  • A four-week month figure is also shown for four-weekly payroll cycles.
  • Holiday weeks are subtracted from 52 to give the hours you actually attend work.

Example calculation

Inputs

  • 37.5 hours per week
  • 5.6 weeks paid holiday

Result

  • 162.50 hours per average month
  • 1,950 paid hours a year
  • 1,740 hours actually worked

Things to keep in mind

  • Months differ in length, so any monthly figure is an average rather than an exact count.
  • Bank holidays may be included within your 5.6 weeks — check your contract.
  • These results are for general guidance. See our disclaimer — this is not legal, tax or financial advice.

Frequently asked questions

How many working hours are in a month?

For a 37.5 hour week it is about 162.5 hours; for a 40 hour week it is about 173.33 hours. Both use the 52 ÷ 12 average.

Why not simply multiply by four?

An average month is 4.33 weeks. Multiplying by four understates monthly hours by roughly 8 percent.

How many hours are in a working year?

A 37.5 hour week over 52 weeks is 1,950 hours before deducting annual leave.

Related calculators

UK Hourly Rate to Salary Calculator Turn an hourly rate into daily, weekly, monthly and annual gross pay. UK Hours Worked Calculator Turn a daily start, finish and break into daily, weekly and monthly hours worked. UK Salary to Hourly Rate Calculator Turn an annual salary into hourly, daily, weekly and monthly gross pay. UK Weekly Working Hours Calculator Add up a week of hours from a daily pattern and compare it with the 48-hour weekly limit.