All Finance Calculators
A focused collection for personal and business financial planning with understandable results.
● Private and mostly local in your browserSalary Calculator 2026/27
Calculate gross to net or net to gross for the UK and Australia.
Loan Calculator
Estimate monthly payment, total interest and payoff time for an instalment loan. Extra payments are reflected in the amortization schedule and their effect on term and interest.
Mortgage Calculator
Compare home financing using price, down payment, interest, term, taxes and insurance. The result separates the loan payment from additional monthly housing costs.
Compound Interest Calculator
Simulate a lump sum with recurring contributions and selectable compounding frequency. The result separates deposited capital from interest earned over time.
Tip Calculator
Calculate tip, grand total and amount per person from the bill, percentage and party size. Common tip rates are available as quick presets.
Sales Tax Calculator
Add sales tax to a net price or extract it from a tax-inclusive price. Net amount, tax share and final price are shown separately.
Fuel Cost Calculator
Estimate fuel volume, total cost and cost per person from distance, consumption and price per litre. A round trip can be included with one setting.
Currency Converter
Convert amounts between 22 currencies using dated reference rates. The rate date and ratio are shown; bank and card markups are not included.
Invoice Generator
Create a printable invoice with sender, customer, line items, quantities, prices, tax and due date. The draft is stored only in the browser.
Retirement & Savings Goal Calculator
Project savings to a target year and calculate the monthly contribution needed for a chosen final balance.
Credit Card Payoff Calculator
Calculate payoff time and interest cost for a card balance and compare the effect of a higher monthly payment.
Debt-to-Income Calculator
Compare monthly debt payments with gross income and separate housing costs from other obligations.
Household Budget Calculator
Allocate net income across needs, flexible spending and savings and compare it with the 50/30/20 guideline.
Inflation Calculator
Estimate future prices and real purchasing-power loss using a chosen annual inflation rate.
Depreciation Calculator
Compare straight-line and declining-balance depreciation with salvage value and a complete yearly schedule.
Present & Future Value Calculator
Convert an amount between present value and future value using a chosen rate and compounding frequency.
Commission Calculator
Calculate commission, base pay, bonus and net revenue with a threshold and optional tiered rate.
IRR & Net Present Value Calculator
Calculate internal rate of return and net present value from a custom cash-flow series.
ROI Calculator
Accurate results directly in your browser.
VAT Calculator
Accurate results directly in your browser.
Recommended workflow
Estimate cost or return, compare alternative terms and rates, and treat the results as planning estimates.
Frequently asked questions
Is this financial advice?+
No. Results are non-binding estimates and do not replace individual advice.
Where are my figures processed?+
Most calculations are local; current exchange rates require an online request.