Retirement Calculators
Explore our comprehensive range of UK-focused retirement planning tools. Model ISAs, pensions, property, spending and more to make calmer, better informed decisions about money and time.
🎯Comprehensive Planning Tools
Our calculators cover pensions, ISAs, property, FIRE planning, tax optimization, and more. Each tool is built specifically for UK tax rules, State Pension, and the unique aspects of UK retirement planning.
💡How to use these calculators
Start with the popular calculators below, or browse by category. Each calculator is designed to work independently, but many complement each other to give you a complete picture of your retirement planning options.
Start with these popular calculators
These tools are the best starting point for understanding your retirement options. They help you find your retirement age, calculate your FIRE number, and compare different strategies.
Early Retirement Feasibility Calculator (FIRE Age Finder)
Discover the earliest age you can retire by modelling your SIPPs, ISAs, GIAs, cash and investment returns. See how your current trajectory affects your FIRE timeline.
25% Tax-Free Lump Sum Calculator
Calculate how much tax-free cash you can take from your pension and see how it affects your remaining pension pot and future income.
FAD vs UFPLS vs Annuity Comparison Tool
Compare Flexible Access Drawdown, Uncrystallised Funds Pension Lump Sum, and Annuity options to find the best withdrawal strategy for your needs.
Coast FIRE Calculator
Work out how much you need invested today so your money can grow to fund retirement later—without any further contributions. Perfect for planning a lower-stress career transition.
Sell vs Keep Your BTL for Retirement Tool
Compare selling your buy-to-let property and investing the proceeds versus keeping it for rental income. Model capital gains tax, rental yields and investment returns.
Longevity Risk Calculator
Model how long your retirement savings might need to last. Understand longevity risk and see how planning for different lifespans affects your retirement strategy.
Cash ISA vs Stocks & Shares ISA Calculator
Compare Cash ISAs and Stocks & Shares ISAs to see which better supports your retirement goals. Model growth rates, risk levels and tax efficiency over time.
Die With Zero Calculator (UK Specific)
Model how to spend your wealth to zero by the end of your life. Balance enjoying your money now with ensuring you don’t run out, optimized for UK tax rules and State Pension.
Browse By Calculator Category
Explore calculators by category. Each category page includes featured tools, journey guides, and all calculators in that category.
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.
Pension Calculators
Plan your pension strategy with UK-focused tools. Model SIPPs, workplace pensions, tax-free lump sums and withdrawal strategies to optimise your retirement income.
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.
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.
All Retirement Calculators
Browse all our retirement planning calculators. These tools cover pensions, ISAs, property, FIRE planning, tax optimisation, lifestyle planning, and more. Each calculator is designed specifically for UK tax rules and retirement planning.
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Sell vs Keep Your BTL(s) In Retirement Calculator
What is the Sell or Keep your BTL calculator? The Sell vs Keep Your BTL(s) In Retirement Calculator helps you compare the long-term income you could receive from selling your rental properties today versus keeping them for rental income and selling later. It highlights the sustainable income each option can…
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State Pension Gap Calculator
What is the State Pension Gap Calculator? The State Pension Gap Calculator shows you how many National Insurance years you currently have, how many you’ll have by State Pension age, and whether you are on track for the full new State Pension. It highlights any shortfall, shows the pro-rata amount…
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Longevity Risk Calculator (UK Specific)
What is the Longevity Risk Calculator? The Longevity Risk Calculator helps you understand whether your money will outlive you and whether delaying life today comes at the cost of your best, healthiest years. It shows how different retirement ages, spending levels and income sources affect the balance between “time you…
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Career Break Affordability Calculator (UK Specific)
What is the Career Break Affordability Calculator? The Career Break Affordability Calculator shows whether you can take 6–36 months off work without harming your long-term retirement plans. It models your spending, savings, investments and reduced contributions during the break to reveal how a pause from work affects your retirement date,…
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Geo-Arbitrage Early Retirement Calculator
What is the Geo-Arbitrage Early Retirement Calculator? The Geo-Arbitrage Early Retirement Calculator shows how moving to a lower-cost area of the UK can bring your retirement or FIRE date forward. It models equity released from selling your current home, the impact of buying a cheaper property, changes to your mortgage,…
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ETF vs Managed Portfolio Fees Calculator
How can the fees of a Managed Portfolio vs ETF impact your retirement? Compare a low-cost global index fund (such as Vanguard FTSE Global All Cap at 0.23% OCF) against a typical UK managed portfolio charging 1–2% per year. See how fees compound over time and how much they can…
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Retirement Drawdown Planner (UK)
Have you planned how you will draw down your money in retirement? The Retirement Drawdown Planner helps you model how your cash, pensions, ISAs and investments can support you throughout retirement. It shows how long your money can last based on your spending, income sources, real returns and the order…
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Working Part-Time Impact On Retirement Calculator (UK Specific)
What is the Work Part-Time to Retire Early Calculator? The Work Part-Time to Retire Early Calculator shows how switching from full-time work to part-time work can bring forward a more balanced lifestyle without sacrificing your long-term retirement goals. Instead of adding extra work, it models a genuine transition to reduced…
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Coast Fire Calculator (UK Specific)
What is the Coast FIRE Calculator? The Coast FIRE Calculator helps you work out how much you need invested today so that, with no further pension or ISA contributions, your money can grow to fund retirement later. It’s designed for UK investors who want to know when they can stop…
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Lean / Barista / Fat FIRE Comparison Tool (UK Specific)
How much do you need for Lean, Barista and Fat FIRE in the UK? Which FIRE lifestyle fits your future? This calculator lets you compare Lean FIRE (minimalist), Barista FIRE (part-time work supported) and Fat FIRE (comfort-focused) to see how much wealth each requires. Adjust spending, income and growth assumptions…
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Overpaying the Mortgage vs Investing
Mortgage Overpayments vs Investing Calculator (UK) Compare overpaying your mortgage vs investing spare cash (ISA or pension). See which strategy builds more wealth by retirement – and understand the crucial difference between liquid investments and property equity. How the Calculator Works? This calculator compares the long-term impact of overpaying your…
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Early Retirement Feasibility Calculator (UK FIRE)
At what age can you reach financial independence in the UK, and how much wealth does it take? This interactive UK FIRE planning tool shows you how all your assets—SIPPs, ISAs, GIAs, cash and rental income can work together to fund early retirement. Test scenarios, adjust withdrawal rates, and instantly…
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Retirement Calculators
Retirement Calculators Explore our comprehensive range of UK-focused retirement planning tools. Model ISAs, pensions, property, spending and more to make calmer, better informed decisions about money and time. 🎯Comprehensive Planning Tools Our calculators cover pensions, ISAs, property, FIRE planning, tax optimization, and more. Each tool is built specifically for UK…
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Bridge to Retirement Calculator (UK)
How much money do you need to bridge to retirement? Discover how our interactive tool can help you map out exactly how long your savings will last and how much you need to earn to get to retirement. This is specific to the UK market. How the Calculator Works? Understand…
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FAQ
FAQ | Retirement Calculators General Retirement Planning FAQs Retirement planning is not about hitting a single magic number or following a one-size-fits-all formula. It is about understanding how your money, time, and choices interact over decades, and making informed trade-offs that support the life you actually want to live. At…
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Contact
Get in touch Have a question, suggestion, or want to request a new calculator? I’d love to hear from you. Fill out the form on the right or use the contact information on the left. Contact information You can reach me directly via email or use the form to send…
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About
About Retirement Calculators RetirementCalculators.uk exists to help you make clearer, more confident decisions about money, work and retirement. The tools here are built from real questions about how to live better, not just how to hit a number. How it all started In 2018, I discovered Mr Money Moustache, the…