Pay Rise Calculator
See how much a pay rise is worth across every period. Enter your current gross pay and its period, choose a percentage or fixed-amount rise, and compare current and new pay side by side.
Impact of the change
Increase
£6,000
+15.00% · New gross pay £46,000/yr
How this calculator works
Enter your current gross pay and its period, choose a percentage or fixed-amount increase, and the calculator annualises everything with the same shared engine. It shows the increase amount, your new gross pay, and the monthly, weekly and hourly change. The difference and percentage are calculated from the annualised figures, so they stay consistent however you are paid.
Percentage or fixed amount
A rise can be expressed two ways. A fixed-amount rise (for example +£6,000) is easy to read but means a different percentage at different salaries. A percentage rise (for example +15%) scales with your current pay. The calculator shows both the absolute difference and the percentage, so you can compare like for like. Use new pay = current pay × (1 + percentage ÷ 100) to check a percentage offer.
Nominal rise versus purchasing power
The figures show the nominal gross increase — the raw change in pay. They do not adjust for inflation, so a rise that looks generous may still leave you worse off in real terms if prices have risen faster. This tool does not add an inflation calculator; for a real-terms view, compare the rise to a published inflation figure yourself.
Formula
difference = newAnnual − currentAnnual percentage = (difference ÷ currentAnnual) × 100 newPay = currentPay × (1 + percentage ÷ 100) monthlyDifference = difference ÷ 12
Worked example
- ›Current salary £40,000/year, percentage increase 15%
- ›Increase = £40,000 × 0.15 = £6,000
- ›New gross pay = £40,000 × 1.15 = £46,000
- ›Monthly increase = £6,000 ÷ 12 = £500
Frequently asked questions
How is a pay rise percentage calculated?
percentage = (newSalary − currentSalary) ÷ currentSalary × 100. A rise from £40,000 to £46,000 is a 15% increase.
Can I enter a fixed-amount rise?
Yes — choose Fixed amount and enter the increase in your current pay period. The calculator shows the absolute difference and the equivalent percentage.
Does it handle backdated pay?
Not automatically. For a backdated rise, work out the new annual salary and enter it; any lump-sum back-payment is separate and not included in the ongoing figures.
Is the increase gross or net?
Gross only. The difference is before tax, National Insurance and deductions. Your actual take-home increase will be smaller because the extra pay is taxed at your marginal rate.