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.
-
Buy, Borrow, Die Calculator (UK)
What is the Buy / Borrow / Die Calculator? The Buy / Borrow / Die Calculator is an illustrative UK planning tool that compares two ways of funding yearly spending from an investment portfolio. One path models borrowing against investments while allowing the portfolio to continue growing. The other models…
-
Home Bias vs Global Equity Calculator (UK)
What is the Home Bias vs Global Equity Calculator? The Home Bias vs Global Equity Calculator helps you compare three simple equity investing approaches: all UK shares, an all global portfolio, and your own UK/global mix. It is designed for UK investors who want to understand how “home bias” can…
-
Terms of use
Last updated: 7 May 2026 These terms govern your use of RetirementCalculators.uk (the “Site”), operated from https://retirementcalculators.uk. By accessing or using the Site, you agree to these terms. If you do not agree, please do not use the Site. 1. Who may use the Site The Site is intended for users who are at…
-
Privacy Policy
Last updated: 7 May 2026 This policy explains how RetirementCalculators.uk (“we”, “us”) collects, uses, and protects personal information when you use our website at https://retirementcalculators.uk. Who we are RetirementCalculators.uk publishes educational calculators and articles about retirement and personal finance. For questions about this policy or your personal data, contact us at privacy@retirementcalculators.uk. What this site…
-
Cookie Policy
This page provides comprehensive information about how we use cookies on our website to enhance your browsing experience, improve website performance, and deliver personalized content. Cookies are small text files that are stored on your device when you visit our site. They help us understand how visitors interact with our…
-
Financial Coaching
Financial Coaching Services Seek advice and support in planning your retirement or future life goals. I am Ryan, founder of Retirement Calculators. These sessions are a relaxed, practical conversation about the life you want and how your money, time, and habits can line up behind it. No hard sell, no…
-
ISA Regular Contributions Calculator (UK)
What is the ISA Regular Contributions Calculator? The ISA Regular Contributions Calculator helps you estimate how regular monthly investing into a Stocks and Shares ISA could build up over the rest of the current tax year. It is designed for people planning ISA top-ups before the 5 April tax-year deadline,…
-
ISA Millionaire Timeline Calculator (UK)
What is the ISA Millionaire Timeline Calculator? The ISA Millionaire Timeline Calculator shows how long it could take to build a £1,000,000 portfolio inside a Stocks and Shares ISA. It is built around UK ISA rules and focuses on one simple question: if you invest regularly and earn a steady…
-
Financial Runway Calculator (UK)
What is the Financial Runway Calculator? The Financial Runway Calculator helps you estimate how long your accessible money could last while you explore a life or career change. It is designed for people thinking about a sabbatical, part-time work, retraining, starting a business, or simply creating more breathing room. By…
-
State Pension NI Top-Up Breakeven Calculator (UK)
What is the State Pension NI Top-Up Breakeven Calculator? The State Pension NI Top-Up Breakeven Calculator helps you explore whether paying for missing National Insurance years could increase your State Pension enough to justify the upfront cost. It is designed for people considering voluntary Class 3 NI contributions and wanting…
-
The Latte Factor Calculator (UK)
What is The Latte Factor Calculator? The Latte Factor Calculator helps you see how a small regular spend could grow if you redirected it into investing instead. It takes a daily amount, turns it into a monthly investment, and projects how it could build over time through compound growth. This…
-
Pension Tax Relief Calculator (UK)
What is the Pension Tax Relief Calculator? The Pension Tax Relief Calculator helps you compare the real cost and long-term impact of the three main ways to contribute to a pension: Relief at Source, Net Pay, and Salary Sacrifice. It takes what is often a confusing tax topic and turns…
-
About
👋 Welcome to Retirement Calculators Explore what your future could look like Retirement Calculators helps you explore different paths through work, money and time. These are illustrative tools designed to help you model your options, understand trade-offs and make more confident decisions about the future. 🧮 Browse all calculators 🔥…
-
How Can I Make a Million Pounds Calculator (UK)
What is the How Can I Make a Million Pounds Calculator? The How Can I Make a Million Pounds Calculator helps you map out a realistic path to building a £1 million investment portfolio. It compares three simple strategies, investing through an ISA, investing through a pension, or splitting contributions…
-
Business Sale Retirement Calculator (UK)
What is the Business Sale Retirement Calculator? The Business Sale Retirement Calculator helps you explore whether the proceeds from selling a business could support your retirement plans. It starts with a simplified asset disposal tax sketch on the sale, then combines the estimated net proceeds with your existing pensions, ISAs,…
-
GIA vs ISA vs Pension Comparison Calculator (UK)
What is the GIA vs ISA vs Pension Comparison Calculator? The GIA vs ISA vs Pension Comparison Calculator helps you compare three common UK investment wrappers using the same annual saving habit: a general investment account, a Stocks & Shares ISA, and a pension. It is designed to show how…
-
DB Pension CETV Transfer vs Stay Simulator (UK)
What is the DB Pension CETV Transfer vs Stay Simulator? The DB Pension CETV Transfer vs Stay Simulator helps you compare two possible retirement paths in the UK: keeping your defined benefit pension as scheme income, or transferring its cash equivalent transfer value into a personal pension pot and drawing…
-
Barista Fire Calculator (UK)
What is the Barista FIRE Calculator? The Barista FIRE Calculator helps you explore whether semi-retirement could work for you in the UK. It looks at a mix of part-time income, investments, and pensions to estimate whether you can step away from full-time work while still covering your spending. Instead of…
-
Lifetime Mortgage Drawdown vs Lump Sum Calculator (UK)
What is the Lifetime Mortgage Drawdown vs Lump Sum Calculator? The Lifetime Mortgage Drawdown vs Lump Sum Calculator helps you compare two ways of releasing money from your home: taking a lump sum upfront or withdrawing smaller amounts over time. It shows how timing affects interest roll-up, loan size and…
-
Downsizing vs Equity Release Calculator (UK)
What is the Downsizing vs Equity Release Calculator? The Downsizing vs Equity Release Calculator helps you compare two common retirement housing options: selling your home and downsizing, or staying put and releasing equity from your current property. It shows how each route affects your immediate cash position, your ongoing housing…
-
Equity Release Calculator (UK)
What is the Equity Release Calculator? The Equity Release Calculator helps UK homeowners estimate how much cash they may be able to release from their home and understand how that decision could affect their remaining equity over time. It is designed to give a clear, practical view of what equity…
-
Redundancy Payment Early Retirement Calculator (UK)
What is the Redundancy & Early Retirement Calculator? The Redundancy & Early Retirement Calculator helps you work out whether redundancy could become a route into early retirement. It estimates your redundancy payout and compares three possible paths: retiring immediately, working part-time for a period, or continuing full-time work a little…
-
Fat Fire Calculator (UK)
What is the Fat FIRE Calculator? The Fat FIRE Calculator helps you calculate how much you need and when you could retire in the UK with a comfortable, lifestyle-focused retirement. It models a retirement that includes travel, hobbies and discretionary spending, rather than just covering essentials. How the Calculator Works?…