Free online calculators for money, health and everyday maths
Instant answers for EMI, SIP, GST, FD, BMI, age, percentages and unit conversions. Free, private and made for your phone.
- 100% free
- No signup
- Runs in your browser
- Works on any phone
Popular calculators
- EMI CalculatorMonthly loan EMI, total interest and a full amortization schedule.
- SIP CalculatorEstimate the future value of a monthly SIP, with optional step-up.
- GST CalculatorAdd or remove GST and split it into CGST and SGST.
- FD CalculatorFixed deposit maturity amount and interest earned.
- Percentage CalculatorX% of Y, X as a percent of Y, and percentage change.
- BMI CalculatorBody mass index with category and a visual scale.
- Age CalculatorExact age in years, months and days, plus next birthday.
- Unit ConverterLength, weight, temperature, area, volume and speed.
Finance
All finance tools →- EMI CalculatorMonthly loan EMI, total interest and a full amortization schedule.
- SIP CalculatorEstimate the future value of a monthly SIP, with optional step-up.
- Lumpsum CalculatorFuture value of a one-time investment at a given annual return.
- GST CalculatorAdd or remove GST and split it into CGST and SGST.
- Simple & Compound Interest CalculatorCompare simple and compound interest side by side.
- FD CalculatorFixed deposit maturity amount and interest earned.
Math
All math tools →Health
All health tools →Date & Time
All date & time tools →Converters
All converters tools →Simple, accurate calculators you can trust
Calcuvi is a collection of free online calculators built to give clear answers fast. Whether you are comparing home loan EMIs, planning a monthly SIP, adding GST to an invoice, checking a fixed deposit's maturity value, working out your exact age for a form or converting kilometres to miles, each tool shows the result instantly as you type, with no signup and no clutter.
Every calculator uses standard, published formulas that we test against known examples, shows money in Indian rupees with lakh and crore formatting, and explains the method in plain language with a worked example. Results can be copied, printed or shared as a link. Because all calculations run inside your browser, the numbers you enter are never sent to our servers. The site works on phones, tablets and computers, and you can use it as often as you like.