State Pension Forecast Calculator

What is the State Pension Forecast Calculator?

The State Pension Forecast Calculator helps you estimate when you are likely to receive the UK State Pension and how much it could be worth over time. It projects future payments using triple lock assumptions and shows how changes to State Pension Age could affect your retirement income.

How the Calculator Works?

This calculator starts by estimating your State Pension Age based on your date of birth and the current GOV.UK timetable, including known transitions from age 66 to 67 and the planned move to 68. You can also test potential future increases to see how policy changes might affect you.

From State Pension Age onwards, the calculator projects payments year by year using the triple lock, applying the highest of inflation, earnings growth or the 2.5% minimum. You can view results either in future cash amounts or adjusted to today’s money to reflect real purchasing power.

The tool supports partial entitlements, allowing you to model different National Insurance histories or percentages of the full pension. All projections can be exported for further planning.

Step One: Enter Your Personal and Policy Assumptions

Add your date of birth, expected entitlement level and assumptions for inflation and earnings growth. Choose whether to test potential increases to State Pension Age.

Step Two: Review Your State Pension Forecast

See your estimated State Pension Age, the projected pension at that point and a year-by-year forecast through later life.

Step Three: Compare Real and Nominal Outcomes

Switch between today’s money and future cash values to understand how inflation affects the pension’s real spending power.

State Pension Forecast Calculator

Forecast your UK State Pension using triple lock assumptions (inflation, earnings or 2.5% floor) and test State Pension Age increases.

💡 How to use: Add your date of birth and entitlement (percentage or NI years), choose assumptions, and see your forecast at State Pension Age plus a year-by-year projection from your State Pension Age onwards until age 90 (or your chosen projection length).
⚠️ Important: Remember that while your State Pension increases with inflation (triple lock), your living costs will also rise. If you see £15,000/year in 2053, your expenses will likely be higher then too. Use “Today’s money” view to see what those future amounts would be worth in today’s prices, making it easier to compare with your current spending.

Step 1: 📋 Inputs

Enter your personal details, entitlement information, and assumptions about future inflation and earnings growth. The calculator will estimate your State Pension Age and project your pension from that point onwards.

Used to estimate your State Pension Age under current law, then apply policy risk scenarios.
Default 30 years. Max 60. Projection shows from State Pension Age until age 90 or this length.
Default is the full new State Pension weekly rate for 2026/27.
Use percentage if you already know your forecast proportion. Use NI years for a quick rule-of-thumb.
Example: 100 for full, 80 for 80% of full.

📈 Triple lock assumptions

📅 State Pension Age scenarios

What if the government increases the State Pension Age? Use this section to see how a later retirement age would affect when you can claim your pension. This is just a “what if” scenario – it doesn’t predict what will actually happen.

This shows you what your State Pension Age would be if the government increased it. The main forecast table below still uses your actual State Pension Age under current law. This is just to help you understand the impact of potential changes.
Future cash amounts: Shows the actual pounds you’ll receive each year after triple lock increases (e.g., £15,000 in 2053). Your pension grows with inflation, so these numbers increase over time. Today’s money: Converts those future amounts back to today’s purchasing power, so £15,000 in 2053 might show as £8,000 in today’s money. This makes it easier to compare with your current income.

Step 2: 📊 Results

View your estimated State Pension Age, forecast amounts, and a year-by-year projection showing how your pension will grow from State Pension Age until age 90 (or your chosen projection length).

📅 Estimated State Pension Age (SPA)
💰 Forecast at SPA
⚠️ If SPA increases (scenario)

💰 Year-by-year forecast

This table shows your State Pension from your State Pension Age onwards, year by year. Each year, your pension increases by the triple lock (the highest of CPI inflation, earnings growth, or 2.5%). The amounts shown depend on whether you’ve selected “Future cash amounts” or “Today’s money” above.

Tax year Your age Triple lock uplift used Full pension (£/week) Your pension (£/week) Your pension (£/year)

Important: This is an educational forecast tool. Actual State Pension depends on legislation, your National Insurance record, and future uprating decisions.

Disclaimer: This calculator provides illustrative projections only and does not constitute financial advice. State Pension rules, triple lock policy and State Pension Age may change. Always check your official State Pension forecast for the most accurate and up-to-date information.

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What is the State Pension Forecast Calculator?

It is a UK-specific planning tool that estimates your State Pension Age and projects future payments using triple lock assumptions, allowing you to explore real and nominal outcomes.

How is my State Pension Age calculated?

It is estimated using the current GOV.UK timetable based on your date of birth, including known phased increases.

What is the triple lock?

The triple lock increases the State Pension each year by the highest of inflation, earnings growth or 2.5%.

Can I change the triple lock assumptions?

Yes. You can adjust inflation and earnings growth assumptions to test different scenarios.

What does “today’s money” mean?

It means values are adjusted for inflation so they reflect current purchasing power rather than future cash amounts.

Does this calculate my exact entitlement?

No. It provides an estimate based on assumed entitlement levels. Your actual entitlement depends on your National Insurance record.

Can I model changes to State Pension Age?

Yes. You can add extra years to test the impact of potential future policy changes.

How far into the future does the projection run?

By default, projections run from State Pension Age through to age 90, but you can extend this.

Is the UK State Pension guaranteed to keep the triple lock?

No. The triple lock is a policy choice and may change in the future. This calculator shows projections under current assumptions only.

Can I export the results?

Yes. You can download a CSV file containing the full year-by-year forecast.

Is my data stored?

No. All calculations run locally in your browser and no data is saved or transmitted.