Free financial calculators that work entirely in your browser
Plan investments, retirement income and business pricing with five focused calculators. No sign-up, no uploads — your numbers never leave your device.
All calculators
Learn how they workSIP Calculator
Project monthly mutual fund investments with an annual step-up, growth chart and year-by-year table.
Open calculatorSWP Calculator
Turn a lump sum into regular income and see exactly when the corpus runs out at your withdrawal rate.
Open calculatorFIRE Calculator
Find your financial-independence number, the extra SIP needed and your Coast FIRE age.
Open calculatorProfit & Margin
Calculate margin, markup, GST, net profit per unit and the quantity needed to break even.
Open calculatorZakat Calculator
Calculate Zakat on cash, gold, silver, investments and business stock with an automatic Nisab check.
Open calculatorMore TM Softs tools
Land area, QR codes, PDF utilities and bulk image conversion — all free on tmsofts.in.
Visit tmsofts.inWhy CalcHub
Private by design
Every calculation runs in your browser. Nothing you type is sent to a server.
Charts and tables
See the full yearly breakdown, not just a single final number.
Share and print
Send results on WhatsApp or save a clean, printable PDF in one click.
Accessible
Keyboard friendly, screen-reader labelled, with light and dark themes.
Guides
The difference between investing and withdrawing
Most financial stress comes from mixing up three stages: building, converting and protecting. A SIP builds capital by investing regularly. A SWP converts that capital into income by withdrawing regularly. Between the two sits planning — deciding how much you need, which is exactly what the FIRE calculator works out.
Business owners have a fourth stage
Before you can invest surplus, your pricing needs to be right. The profit margin calculator shows margin, markup, GST and break-even quantity, so you know whether a sale actually makes money.
Wealth comes with responsibilities
If you are liable for Zakat, the Zakat calculator adds up cash, gold, silver, investments and business stock, checks the Nisab threshold and gives you the 2.5% amount due.
Which numbers should you trust?
Every calculator on CalcHub shows the formula it uses. Results are estimates based on constant return assumptions — real markets move. Use them to understand the direction and scale of a decision, then verify important choices with a registered adviser.