20 free tools · no signup
Free Online Tools
Fast, private, browser-based calculators, converters and generators. No login, no downloads — just open a tool and get your answer.
Popular Tools
GST Calculator
Calculate GST inclusive and exclusive amounts for any tax slab.
EMI Calculator
Calculate monthly EMI, total interest and total payment for any loan.
Loan Calculator
Work out loan repayments, total cost and interest over the full term.
Discount Calculator
Find the sale price and amount saved for any percentage discount.
Percentage Calculator
Calculate percentages, what percent one number is of another, and more.
All Tools
20 tools
Break-even Calculator
Find the break-even point in units and revenue for your business.
Commission Calculator
Calculate sales commission and net earnings from a commission rate.
Compound Interest Calculator
See how investments grow with compound interest and regular contributions.
Currency Margin Calculator
Add an FX margin/markup to an exchange rate and convert amounts.
Discount Calculator
Find the sale price and amount saved for any percentage discount.
EMI Calculator
Calculate monthly EMI, total interest and total payment for any loan.
GST Add/Remove Calculator
Add GST to a base amount or remove GST from a gross amount instantly.
GST Calculator
Calculate GST inclusive and exclusive amounts for any tax slab.
Inflation Calculator
See how inflation changes the value of money over a number of years.
Loan Calculator
Work out loan repayments, total cost and interest over the full term.
Overtime Calculator
Calculate overtime pay and total wages from regular and OT hours.
Percentage Calculator
Calculate percentages, what percent one number is of another, and more.
Percentage Decrease Calculator
Calculate the percentage decrease between an old and a new value.
Percentage Increase Calculator
Calculate the percentage increase between an old and a new value.
Profit Margin Calculator
Calculate profit, profit margin % and markup from cost and revenue.
ROI Calculator
Calculate return on investment (ROI) percentage and net gain.
Salary Calculator
Convert salary between hourly, daily, weekly, monthly and yearly.
Sales Tax Calculator
Add sales tax to a price or find the tax portion of a total.
Simple Interest Calculator
Calculate simple interest and the maturity amount for a principal.
Tip Calculator
Calculate the tip and split the bill between any number of people.
About our free online tools
Every tool on this page runs entirely in your browser. Your data never leaves your device, there is nothing to install, and each tool is free to use with no account required. We are steadily expanding the collection across finance, accounting, developer, text, image and productivity categories.
These tools are built by the team behind Taskmate ERP, a modern cloud ERP for accounting, inventory and business management. If you run a business, explore how Taskmate ERP can automate your billing, GST and reporting.