Plan your retirement with clarity, not guesswork
Retirement Calculators provides you with a comprehensive range of UK-focused calculators to test different routes between full-time work and full retirement. Model ISAs, pensions, property, tax optimisation, public sector schemes, FIRE planning and spending so you can make calmer, better informed decisions about money and time. These calculators add an extra layer of validation to your life decisions.
Explore calculators by theme
Start with the area that matches your biggest question. Each section contains focused tools that work together as part of a bigger UK retirement plan.
FIRE & Early Retirement
For people who want work to become optional well before traditional retirement ages. Model your FIRE number, bridge years and different lifestyle levels.
- FIRE Number Calculator
- Early Retirement Feasibility Calculator (FIRE Age Finder)
- Retirement Countdown Calculator (UK)
- Coast FIRE Calculator
- Fat FIRE Calculator (UK)
- Lean FIRE Calculator (UK)
- Barista FIRE Calculator (UK)
- Lean / Barista / Fat FIRE Lifestyle Comparison Tool
- Part-Time Work to Retire Early Calculator
- Bridge-to-Retirement Modeller
Pension Calculators
Understand how workplace pensions, SIPPs and the State Pension fit together. Explore contribution limits, tax free cash and the gap between where you are and where you want to be.
- SIPP Contribution Calculator
- Workplace Pension Contribution Calculator
- Pension Tax Relief Calculator
- Pension Account Growth Calculator
- 25% Tax-Free Lump Sum Calculator
- FAD vs UFPLS vs Annuity Comparison Tool
- Hybrid Pension (DB + DC) Retirement Calculator
- State Pension Gap Calculator
- State Pension Forecast Calculator
- State Pension NI Top-Up Breakeven Calculator
- Minimum Pension Retirement Calculator
Property, Mortgage & BTL
See how your home and any rental properties support your retirement plans. Compare selling, keeping, overpaying the mortgage or using equity as part of your strategy.
- Sell vs Keep Your BTL for Retirement Tool
- Buy-to-Let Retirement Income Calculator
- Inheriting a Property Tax Calculator
- Overpay Mortgage vs Invest for Retirement Calculator
- Downsizing: Release of Equity Retirement Calculator
- Property Leverage Calculator
- Equity Release Calculator (UK)
- Downsizing vs Equity Release Calculator (UK)
- Lifetime Mortgage Drawdown vs Lump Sum Calculator (UK)
Tax Optimisation
Explore how to use ISAs, pensions and efficient wrappers so you keep more of your returns. These tools highlight the long term impact of fees, allowances and tax planning.
- Tax-Year End Allowance Optimiser Calculator (UK)
- Capital Gains Harvesting / Bed-and-ISA Calculator (UK)
- Pension vs ISA Comparison Calculator
- High Income Child Benefit Charge Calculator
- Marginal Tax Rate Calculator
- SIPP Contribution Calculator
- Workplace Pension Contribution Calculator
- Time to Financial Independence Calculator
Work & Career Transition
Not everyone wants to jump straight from full time work to full retirement. Model part time work, semi retirement and career breaks to see how they shift your retirement timeline.
- Part-Time Work Break-Even Calculator
- Semi-Retirement Cashflow Calculator
- One More Year Syndrome Calculator (UK)
- Self Employed Retirement Calculator (UK)
- Redundancy Payment Early Retirement Calculator (UK)
- “Can I Afford to Quit?” Early Exit Retirement Calculator
- Bullshit Jobs Calculator (UK)
- Career Break / Sabbatical Affordability Tool
Public Sector Profession Calculators
Specialised tools designed for NHS staff, teachers and other public sector professionals, reflecting the quirks of public sector pension schemes and benefits.
- NHS Pension Early Retirement Reduction Calculator
- Teacher Pension Scheme (TPS) Retirement Calculator
- Armed Forces (AFPS 75, AFPS 05, AFPS 15) Pension Calculator
- Civil Service Pension Retirement Calculator
- Police Pension 1987/2006/2015 Retirement Calculator
- Firefighters Pension (1992/2006/2015) Retirement Calculator
- DB Pension CETV Transfer vs Stay Simulator (UK)
Retirement Income & Withdrawal
Plan how to generate and withdraw retirement income efficiently. These tools help you understand your total retirement income, optimise withdrawal strategies, and see how different income sources work together.
Investment & Portfolio
Understand how your investment choices and fees shape your long term outcomes. Compare growth rates, contribution levels and portfolio structures.
- Cash ISA vs Stocks & Shares ISA Calculator
- ISA Millionaire Timeline Calculator (UK)
- GIA vs ISA vs Pension Comparison Calculator (UK)
- Lump Sum Investment Calculator
- Home Bias vs Global Equity Calculator (UK)
- Compound Interest Comparison Calculator
- Safe Withdrawal Rate Stress Tester
- ETF vs Managed Portfolio Fees Calculator
- Cash vs Investing Opportunity Cost Calculator (UK)
Life Events & Scenario Modelling
Test big one off decisions and what if scenarios. Business sale, redundancy, windfalls, inheritance planning and other life events can all shift the shape of your retirement journey.
- Business Sale Retirement Calculator (UK)
- Die With Zero Calculator (UK Specific)
- The Latte Factor Calculator (UK)
- Zero-Income Gap-Year Calculator (UK)
- Financial Runway Calculator
- Van Life Retirement Cost Calculator (UK)
- Narrowboat Retirement Cost Calculator (UK)
- Nomadic Retirement Calculator
- Downsizing vs Passing Home to Children Calculator
- Buy, Borrow, Die Calculator (UK)
Geo-Lifestyle & Relocation
Explore how moving region within the UK or changing your cost of living could accelerate or support your retirement plans.
Crypto & Geo-Arbitrage
Explore how crypto holdings and international relocation can work together for tax-efficient retirement planning. Compare crypto-friendly jurisdictions and residency strategies.
- Crypto International Geo-Arbitrage Calculator
- Crypto Tax Record-Keeping & CARF Readiness Calculator (UK)
- Global Crypto Withdrawal Sequencing Tool (UK Expat Edition) Coming soon
- Temporary Non-Resident Crypto Tax Trap Simulator (UK 5-Year Rule) Coming soon
- International Pension + Crypto Residency Optimiser Coming soon
- Offshore Residency Payoff Calculator Coming soon
- Retire Abroad with Crypto Cost-of-Living Pathfinder Coming soon
Core Planning Tools
Essential tools for lifestyle planning and risk assessment. These calculators help you plan your spending, assess longevity risk, and see how robust your retirement plan is under different scenarios.
Guidance, not guarantees
Our UK-focused calculators are detailed models built for education and planning purposes. They help you explore different scenarios, understand how your decisions affect your retirement timeline, and identify gaps in your planning. Markets, tax rules and personal circumstances change, so results are illustrative guides—not predictions or guarantees. Use multiple calculators together to build a complete picture of your retirement options.
These tools are designed to help you have more informed conversations about money and time. For major financial decisions, consider consulting with a regulated financial adviser who can assess your complete financial situation and provide personalised advice.
Trust and education
Certified Money First Aider®
These calculators are built by a Certified Money First Aider to help you think more clearly about money and time. Money First Aid® is about practical, non-judgemental support for financial wellbeing. The calculators can certainly help you make informed decisions, but they are not regulated financial advice.
Request a calculator or share feedback
If you have an idea for a new tool or spot something that could be clearer, I would love to hear from you. RetirementCalculators.uk will grow over time based on the real questions people are asking.