Free UK Pension Calculator & Retirement Calculator (2026/27)
Plan your retirement income with this free UK pension calculator. Estimate how much sustainable net income you could draw each year from your pension pot, ISA, and other savings — from your chosen retirement age through to the end of your planning horizon. Uses 2026/27 UK tax thresholds and the full new State Pension of £241.30/week (£12,548/year).
How it works
Enter your current age, pension pot value, ISA and savings balances, expected retirement age, and growth assumptions. The calculator uses a binary search algorithm to find the highest sustainable annual net income that keeps your total assets above zero through retirement.
UK tax calculations included
All projections account for UK income tax rules including the Personal Allowance (£12,570), basic rate (20%), higher rate (40%), and additional rate (45%). The 25% pension tax-free lump sum and tax-free ISA withdrawals are modelled automatically. State Pension income is included from your chosen state pension age.
Features
- Interactive year-by-year retirement projection chart
- PLSA Retirement Living Standards comparison gauge
- Balanced withdrawal strategy across pension, ISA, and savings
- Personal Allowance tapering above £100k modelled
- All calculations run in your browser — no data is sent to any server
Frequently asked questions
How much pension do I need to retire in the UK?
The PLSA 2025/26 Retirement Living Standards suggest a single person needs roughly £13,400/year for a minimum retirement, £31,700/year for moderate, and £43,900/year for comfortable (outside London). In pot terms, that's approximately £0–£60k, £340k, and £555k respectively — in addition to the full new State Pension. Read the full guide.
What is the full new State Pension weekly rate for 2026/27?
The full new State Pension is £241.30 per week (£12,548 per year) from 6 April 2026, a 4.8% triple-lock uplift on 2025/26. The Basic State Pension is £184.90/week. Read the state pension guide.
Is this pension calculator free?
Yes — completely free, no sign-up, no email required, no ads, no data sent to any server. All calculations run locally in your browser.
Does it calculate pension growth and projection?
Yes. The calculator projects your pension pot year by year from your current age to retirement age using your chosen nominal growth rate and inflation assumption, then simulates balanced withdrawals through your retirement horizon.
This calculator requires JavaScript to run. Please enable JavaScript in your browser to use the interactive planner.
More FAQs · State Pension 2026/27 guide · How much pension to retire