Life,calculated.
Free tools to plan a budget, understand your health and work out the everyday.
Choose a calculator to get started ↓
Free · No sign-up · No app
The calculator collection
Find yournext calculation.
From everyday essentials to your next project. Choose a topic and get straight to it.
Money & mortgages
Borrowing, repayments, savings and VAT. Put your own numbers behind the plan.
- Mortgage Repayment CalculatorEstimate monthly repayments from your loan, rate and term.
- Remortgage CalculatorCompare rates and switching fees using your own lender quotes.
- Personal Loan CalculatorCompare repayments and interest across loan terms.
- VAT CalculatorAdd or remove VAT from a price.
- Mortgage Overpayment CalculatorCompare regular and lump-sum overpayments; check your lender’s allowance.
- Compound Interest CalculatorExplore how deposits and interest could grow your savings.
Everyday life
Dates, time and travel. Work through the small questions in your day.
Health & fitness
Explore daily energy needs, body measurements and pregnancy dates.
- BMI CalculatorCalculate body mass index from height and weight.
- TDEE CalculatorEstimate your total daily energy needs.
- Macro CalculatorExplore protein, carbohydrate and fat targets.
- Body Fat CalculatorEstimate body fat percentage from your measurements.
- Due Date CalculatorEstimate a pregnancy due date and timeline.
- BMR CalculatorEstimate how much energy your body uses at rest.
Home & DIY
Plan materials, energy use and the details of your next home project.
Maths & study
Work with percentages, measurements and the numbers behind your studies.
Have a more specialised question?
Explore the full collectionStart with a plan
Make it
all add up.
Useful tools for the different parts of one plan.
Buying or remortgaging?
Compare mortgage repayments, new terms and possible overpayments.
Building a fitness routine?
Explore daily energy needs and body measurements.
Planning a break?
Work out holiday entitlement, dates and petrol costs.
Made for real life
Real life.Real questions.
CalcForLife is an independent project by Bin, a developer who believes everyday calculations should be easier to work through.
Each tool starts with a practical question. Explore the explanations, examples and formulas on calculator pages to understand what sits behind the answer.
The story behind CalcForLifeYour next answer, in a few steps.
Pick your question
Choose a topic and open the calculator that matches what you want to know.
Make the details yours
Enter your values. Check the units, dates and assumptions shown on the tool.
See what changes
Review the result and its explanation. Adjust an input to compare another scenario.
Good to know
A few
answers.
A few things to know before you get calculating.
Are the calculators free?
Yes. CalcForLife’s calculators are free to use and do not require an account. Open a tool, enter the requested values and calculate your result.
How do I choose the right calculator?
Start with an everyday essential or browse a topic. Each short description explains what the tool does. You can also explore the full collection. Explore the full collection.
Can I use them on my phone?
Yes. Use CalcForLife in your phone or tablet’s browser. There is no app to install. Open your chosen calculator and follow its input labels.
What should I check before calculating?
Check the units, dates, time periods and rates you enter. Review the tool’s assumptions and select the appropriate measurement units where options are available.
Why might two calculators give different results?
Formulas, rounding and assumptions can differ. Compare those details along with the final number. Projections and health measurements are estimates; each tool’s explanation helps you understand their limits.
Can I suggest a calculator or report an issue?
Absolutely. Visit the contact page with your idea or feedback. For an issue, include the calculator name and a description of what you expected. Visit the contact page.
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next?
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