FCalc PlusFree UK money tools

FCalc Plus

Free financial calculators for mortgages, savings, investments, tax, and retirement planning.

33 explainers, 154 minutes of reading. Newest 5 November 2026.

See the ledgerRun your own numbers

The ledger

All 33 pieces in one table. Sort by minutes to find a quick read, or by section.

Every piece. Select a column heading to sort.
Evaluate UK Investment Calculator Results PragmaticallySaving55 November 2026
How to Use Financial Calculators Online: A Step-by-Step GuideGuides725 October 2026
How to choose a financial calculator you can trust (and check its assumptions)Saving620 October 2026
Common personal finance mistakes, and simple fixesTips320 October 2026
Retirement planning mistakes to avoidTips420 October 2026
APR, AER and EAR: what the interest rate numbers meanSaving320 October 2026
Money calculators worth bookmarkingSaving420 October 2026
Ten mistakes people make with online money calculatorsTips320 October 2026
Which investment calculator do you need? A quick guideSaving120 October 2026
Using a pension calculator: what to enter and how to read the resultGuides420 October 2026
How much do you need to save each month? A simple method that worksSaving420 October 2026
Sinking funds: how to save for big, predictable costsSaving420 October 2026
Buying your first home in the UK: the costs to plan forSaving320 October 2026
Credit files explained: how to check yours and improve itGuides420 October 2026
Comparing personal loans: how to use a loan calculator properlyGuides420 October 2026
Mortgage amortisation explained: where your repayments goGuides420 October 2026
Inflation explained: what it means for your moneyGuides320 October 2026
Compound interest explained, with the formula and UK examplesGuides316 October 2026
How to calculate tax on crypto gains in the UKGuides35 October 2026
The Great Calculator Showdown of 2026: Millennial Financial Hub vs. The Established GuardGuides722 June 2026
Free Financial Calculators: A Smart First Step, Not the Final WordSaving722 June 2026
Financial calculator strategies for navigating tax and economic shiftsSaving522 June 2026
Financial calculator hubs: what to look for in 2026Saving622 June 2026
Financial Calculator Hubs: Key Features for Smarter PlanningSaving622 June 2026
The 2026 Financial Compass: Why Your Digital Calculator is More Than Just MathSaving722 June 2026
10 costly mistakes to avoid with financial calculatorsTips622 June 2026
The AI-Powered Crystal Ball: How Smart Financial Calculators Will Reshape Your Wallet by 2026Guides826 May 2026
Can you predict the stock market? What the evidence saysCompare38 May 2026
Ten personal finance calculations everyone should knowSaving38 May 2026
UK tax reliefs people often forget to claimGuides45 May 2026
How UK student loan repayments actually workGuides45 May 2026
Unlocking Your Retirement Dream: A Deep Dive into the Post-Retirement Living Expense Calculator and Lifestyle PlanningSaving84 April 2026
Planning for healthcare costs in retirement with advanced calculatorsSaving84 April 2026
Total, 33 pieces154

Run your own numbers

Compound interest with a monthly top-up, worked out in your browser. The starting values are only an example; change them. It assumes a fixed rate, monthly compounding and no tax or fees, so treat it as an illustration, not advice. The compound interest explainer walks through the same formula.

FV = P(1 + r/12)12n + M × ((1 + r/12)12n − 1) ÷ (r/12)

Paid in
£13,000
Interest
£3,216
Balance after 10 years
£16,216