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Working Time Tools

UK Weekly Working Hours Calculator

Work out how many hours you put in across a week and see how that compares with the average 48-hour weekly limit under the Working Time Regulations.

Add overtime separately so you can see the effect of extra shifts on your weekly total.

UK Weekly Working Hours Calculator

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

Results

Weekly hours
37 hours 30 minutes
Weekly decimal hours
37.50 hours
Hours per day
7 hours 30 minutes
Overtime included
0.00 hours
Average over 17 weeks
37.50 hours per week

How to use this calculator

  1. Enter the hours and any extra minutes you work on a normal day.
  2. Enter how many days a week you work.
  3. Add any overtime hours for the week.
  4. Check the weekly total against your contract and the 48-hour average limit.

How the calculation works

  • Daily hours and minutes are converted to minutes and multiplied by the number of days.
  • Overtime is added on top as extra hours.
  • The 48-hour limit under the Working Time Regulations is normally an average over a 17-week reference period, not a hard weekly cap.

Example calculation

Inputs

  • 7 hours 30 minutes per day
  • 5 days
  • 4 hours overtime

Result

  • 41.50 hours for the week
  • 37.50 contracted
  • 4.00 overtime

Things to keep in mind

  • This tool gives general information about working time, not legal advice.
  • Some sectors, such as transport, have their own working time rules.
  • These results are for general guidance. See our disclaimer — this is not legal, tax or financial advice.

Frequently asked questions

What is the maximum working week in the UK?

Most workers should not work more than 48 hours a week on average, usually averaged over 17 weeks. Adults can opt out of that limit in writing.

Is 37.5 hours a full-time week?

It is one of the most common full-time patterns in the UK, along with 35 and 40 hours. Full-time is defined by your employer, not by law.

Does overtime count towards the 48-hour limit?

Yes, overtime counts as working time when calculating the weekly average.

Related calculators

UK Hours Worked Calculator Turn a daily start, finish and break into daily, weekly and monthly hours worked. UK Monthly Working Hours Calculator Convert weekly hours into an average month, a four-week month and a full year. UK Overtime Calculator Calculate normal pay, overtime pay and total gross pay at any overtime multiplier. UK Rest Break Calculator See the rest break guidance that applies to a shift length and worker age.