About | Retirement Calculators

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 Start with early retirement tools

Campervan pitched at a campsite overlooking a lake

Why I built this

In 2021, I sold an online education business I had built. It was a big life moment. Suddenly, the questions changed from “how do I grow this business?” to “what does this money actually mean for our life?”

I had capital to invest, a young family, property income, pensions, ISAs and a desire to work differently. What I did not have was a clear UK-focused way to model it all together.

Most retirement calculators felt too basic, too US-focused or too detached from real life. I wanted tools that could answer practical questions like: can I work less, how long will accessible money last, should I use an ISA or pension, and what happens if we make different lifestyle choices?

Built an online education business
Sold the business (2021)
Had to learn how to manage money
Built the calculators I wanted

Life behind the numbers

Behind every calculator on this site is a real family trying to make thoughtful decisions. For us, that means time outdoors, cycling with the kids, local parks, trips away, school runs, work projects and trying to build a life that feels balanced rather than permanently rushed.

Retirement planning is not just about stopping work one day. It is about buying back options. More time with family. More flexibility. Less pressure. A better rhythm of life.

How the calculators help

Think of these tools as financial flight simulators. They do not predict the future, but they help you test different routes before making big decisions.

Direction

See your path

Model your savings, pensions, ISAs, income and spending over time.

Scenarios

Test the trade-offs

Compare working longer, saving more, spending less, downsizing or using part-time income.

Privacy

Keep it private

The calculators are designed for illustrative modelling. Your figures are not stored.

Where to start

Not sure which calculator to use first? Start with the question that feels closest to your life right now.

Early retirement gapCan I bridge the years before pension access?Use this if you want to understand how cash, ISAs, investments, rental income or part-time work could support you before pension age.Try the Bridge to Retirement Calculator FIRE planningWhen could work become optional?Model your assets, spending and investment growth to explore whether early retirement is realistic.Try the Early Retirement Feasibility Calculator Business saleCould a business exit support retirement?Explore how estimated sale proceeds might combine with pensions, ISAs and other investments.Try the Business Sale Retirement Calculator ISA vs pensionShould I prioritise pension or ISA?Compare tax efficiency, access, growth and retirement income flexibility.Try the Pension vs ISA Calculator Property choicesHow does property fit into the plan?Compare buy-to-let income, downsizing, mortgage overpayments and equity release options.Browse property calculators Income planningHow do I take money out sensibly?Explore withdrawal order, retirement income sources and how long money may need to last.Try the Withdrawal Strategy Calculator

Explore by theme

If you prefer to browse, these sections group the tools by the type of question you are trying to answer.

FIRE & Early RetirementFor people who want work to become optional earlier.Pension CalculatorsModel SIPPs, workplace pensions, State Pension and tax-free cash.Property, Mortgage & BTLSee how property decisions affect retirement income and timing.Tax OptimisationCompare wrappers, allowances and tax-efficient planning routes.Work & Career TransitionModel part-time work, sabbaticals, redundancy and stepping back.Investment & PortfolioUnderstand growth, fees, wrappers and long-term compounding.

Guidance, not guarantees

These calculators are detailed models, but they are still illustrations. No calculator can know what markets, inflation, tax rules or personal circumstances will do in the future.

The aim is not to give you a guaranteed answer. The aim is to help you understand your direction of travel, spot possible gaps and have better conversations about money, work and time.

Important: Retirement Calculators is educational and illustrative only. It is not regulated financial advice. For major financial decisions, consider speaking to a qualified financial adviser.

A personal note

This site sits at the meeting point of my own life experience: building online businesses, selling a business, investing, thinking about family life and wanting a healthier relationship with work.

My hope is that the tools help you feel less overwhelmed and more in control. Not because they give you a perfect answer, but because they provide options for how you lead your life.

RyanFounder, Retirement Calculators

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