Free Financial Calculators 2025 — UK, US, Canada, Australia | WiseInvestorPath
🧮 Free Tools

Free Financial Calculators 2025

8 free calculators for UK, US, Canadian and Australian consumers — mortgage, tax, debt, savings, budget and retirement planning tools.

8
Free calculators
4
Countries
0
Sign-up required
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All calculators are free and require no sign-up. Results are illustrative estimates — always verify with your lender, HMRC, or a qualified adviser before making financial decisions.
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Mortgage🇬🇧 UK
Mortgage Repayment Calculator
Calculate your monthly mortgage payment, total interest, and full repayment schedule for any loan amount, rate, and term.
Monthly payment breakdown
Total interest over full term
Overpayment impact tool
Year-by-year amortisation
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Stamp Duty🇬🇧 UK
Stamp Duty Calculator
Calculate SDLT for England & Northern Ireland, LBTT for Scotland, and LTT for Wales — including first-time buyer relief.
England, Scotland & Wales
First-time buyer relief
Second home surcharge
Band-by-band breakdown
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Income Tax🇬🇧 UK
Income Tax Calculator UK
Calculate your UK income tax, National Insurance, and take-home pay for any salary — including Scottish income tax rates.
England & Scottish rates
Income tax + NI breakdown
Monthly & annual figures
Effective tax rate shown
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Savings🌍 Global
Compound Interest Calculator
See how your money grows over time with compound interest — model savings, investments, or any lump sum with regular contributions.
Lump sum + monthly contributions
Daily, monthly, annual compounding
Year-by-year growth chart
Inflation-adjusted toggle
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Savings Goal🌍 Global
Savings Goal Calculator
Find out how long to reach any savings target — or calculate exactly how much to save each month to hit a goal by a set date.
2 modes: how long / how much
Interest rate included
Year-by-year progress chart
Works for ISA, TFSA, HYSA
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Debt Payoff🌍 Global
Debt Payoff Planner
Add all your debts and compare the snowball vs avalanche method — see your exact debt-free date and total interest saved with each strategy.
Add unlimited debts
Snowball vs avalanche comparison
Month-by-month schedule
Interest saving shown
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Budget🌍 Global
Budget Planner — 50/30/20 Rule
Build a monthly budget using the 50/30/20 rule. Enter income and expenses — get an instant scorecard and see your surplus or deficit.
Needs / wants / savings split
Animated donut chart
On-track / warning scorecard
Surplus / deficit shown clearly
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Retirement🌍 Global
Retirement Calculator
Find your retirement target number, project your pension or super balance, and see if you're on track — with UK, US, Canada and Australia modes.
🇬🇧 🇺🇸 🇨🇦 🇦🇺 country modes
25× rule target number
Age-by-age projection chart
Gap analysis + tips
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