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WorthSpan

Pay Raise Calculator

Enter your current pay and your raise as a percentage or an amount. Add inflation to see whether the raise actually increases what you can buy.

Your details

GBP

Before tax.

Raise type
%
%

Use the official CPI rate from your statistics agency.

Enter your current pay and raise to see the difference.

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AI-powered explanations that use only this calculator's formulas, your result and its listed sources.

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Tax / data year
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Source
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Last verified
5 Oct 2026
Version
1.0.0

What this calculator tells you

A raise sounds bigger as a percentage and smaller as an hourly figure. Seeing all of them together makes it easier to judge an offer or prepare for a salary conversation.

When you add inflation, we show the real raise: how much more you can actually buy. A raise below inflation is a pay cut in real terms.

Formula and methodology

  • Increase (percentage)

    increase = current × raise% ÷ 100

  • Percentage increase

    pct = increase ÷ current × 100

  • Real raise

    real% = ((1 + pct/100) ÷ (1 + inflation/100) − 1) × 100

  • Hourly increase

    annual_increase ÷ (hours_per_week × weeks_per_year)

Hourly and annual figures use the working hours saved in your profile (set them in the Salary to Hourly calculator). Default: 40 hours × 52 weeks.

Read the full methodology

Data sources

  • Inflation rate— entered by you from your national statistics agency's CPI release

Last updated · Calculator version 1.0.0

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Frequently asked questions

How do I calculate a percentage pay raise?

Multiply your current pay by the raise percentage and divide by 100. A 5% raise on £40,000 is £2,000, giving a new salary of £42,000.

What is a real pay raise?

A real raise is what is left after inflation. If pay rises 5% while prices rise 3%, your real raise is about 1.94%: (1.05 ÷ 1.03) − 1.

Where do I find the inflation rate?

Use the annual consumer price inflation published by your country's statistics agency, for example the ONS in the UK or KNBS in Kenya. We do not fill this in for you.

Is the raise before or after tax?

Before tax. Tax can take a larger share of the extra income, so your take-home increase may be smaller.