Jobs
Career tools
Learn · Career tool
Unpaid overtime calculator.
Value the extra hours you are working and understand the effect on your effective hourly rate.
Net unpaid value
£6,327
At 7.5 extra hours a week for 47 weeks, the gross value is £6,327 and the net unpaid value after offsets is £6,327.
- Extra hours/week
- 7.5
- Gross value
- £6,327
- Effective rate
- £15.20/hr
- Salary to protect rate
- £41,327
Below Real Living Wage
The unpaid hours materially change the offer. In candidate terms, the headline salary is weaker than it looks because the true hourly rate is 15.3% below the contracted rate after offsets.
Planning tool only — not legal advice. Always check the signed contract, the staff handbook and current GOV.UK guidance, which override any figure shown here.
Next steps
Plan your next move
Unpaid overtime calculator
Questions people ask
Am I entitled to be paid for overtime?
Only if your contract says so. There is no general right to overtime pay in the UK, and many architectural contracts state that reasonable additional hours are included in salary. What the law does require is that your average pay does not fall below the National Minimum Wage once all worked hours are counted, which is where persistent unpaid overtime can become a genuine problem.
What is this calculator actually showing me?
The value of the hours you are working beyond your contracted week, priced at your effective hourly rate. It is most useful as preparation for a conversation: it turns "I work a lot of late nights" into a specific annual figure, which is far harder to wave away.
How do I raise this without it going badly?
Bring a record rather than a feeling. Track the hours for a few weeks, present the pattern and its cause, and ask what can change — resourcing, deadlines, scope or time off in lieu. Framing it around delivery rather than grievance tends to get a more useful response.