UK Pension Calculator
The UK Pension Calculator projects your retirement income from two sources: the new State Pension (up to £221.20/week in 2024-25) based on your National Insurance qualifying years, and your workplace or personal pension pot. Adjust contributions, growth rate, and retirement age to optimise your retirement plan.
Educational estimate. Calculator results are for planning and information only, not financial, tax, medical, legal, or engineering advice. Verify important decisions with official sources or a qualified professional.
UK Pension Calculator
State Pension + Workplace & Private Pension
📐 Formula & Method
State Pension
You need 35 qualifying NI years for the full new State Pension. Minimum 10 years for any State Pension.
Pension Pot at Retirement
Monthly growth rate r = annual rate / 12; n = months to retirement.
📋 How to Use
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1
Enter your current age and planned retirement age.
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2
Enter your NI qualifying years (check at gov.uk/check-state-pension).
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3
Enter current pension pot value and monthly contributions.
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4
Adjust growth rate to see projected retirement income.
UK Pension Planning — State Pension and Workplace Pension
The new State Pension (for those reaching State Pension age after April 2016) pays a maximum of £221.20 per week (2024-25) if you have 35 qualifying National Insurance years. You can check your State Pension forecast and NI record for free at gov.uk.
Workplace pensions under auto-enrolment require minimum contributions of 8% of qualifying earnings (3% from your employer, 5% from you). Self-employed workers can contribute to a personal pension or SIPP and receive tax relief at their marginal rate — meaning a 40% taxpayer effectively pays only £60 for every £100 in their pension.
🔬 Methodology & Accuracy
Formula: Uses the standard mathematical formula shown in the Formula & Method section above. All computations run client-side in your browser — no data is sent to our servers.
Data sources: Tax bands, contribution limits and regulatory rates are taken from official US (IRS, SSA) and UK (HMRC, gov.uk) publications for the current tax year, and updated when bands change.
Last reviewed: January 2025 · Accuracy: Results are precise to two decimal places using IEEE-754 double-precision arithmetic. Intended for educational and planning use only.
For informational purposes only. Results are estimates based on the inputs and formulas provided. For financial, tax, medical, or legal decisions, consult a qualified professional. Rates and regulations change — always verify current figures with official sources.