Online Calculator
Your All-in-One Calculator Suite
Plan investments, calculate EMI, check BMI, convert currencies and more — accurate, private, and completely free. No login required.
Why Use Online-Calculator.work?
All 100+ calculators are completely free, require no login or registration, and run entirely in your browser. Your financial, health and personal data never leaves your device.
- 100% Free & Private — No sign-up, no ads, no data collection. Everything runs client-side.
- Accurate Formulas — Industry-standard calculations with transparent, explained formulas.
- 100+ Calculators — Finance, health, math, date/time and business tools in one place.
- Multiple Number Formats — Switch between Indian (Lakhs/Crores) and International (Million/Billion) formats.
- Mobile-Friendly — Responsive design that works seamlessly on phones, tablets and desktops.
- Dark Mode — Easy on the eyes with automatic or manual theme switching.
- Keyboard Accessible — Full keyboard navigation with ARIA labels for screen readers.
What is a SIP (Systematic Investment Plan)?
A Systematic Investment Plan (SIP) lets you invest a fixed amount in mutual funds at regular intervals — typically monthly. It's one of the most popular ways for investors to build long-term wealth through the power of compounding and rupee-cost averaging.
Use our SIP Calculator to estimate your returns, explore the SIP & SWP Calculator for complete investment-to-retirement planning, or check the Lumpsum Calculator for one-time investments.
Popular Calculators
Whether you're planning a home loan, comparing FD interest rates, estimating your in-hand salary, or tracking your BMI, our tools have you covered:
- EMI Calculator — Estimate monthly instalments for home loans, car loans and personal loans.
- Mortgage Calculator — Calculate your monthly mortgage payment, total interest and amortisation schedule.
- FD Calculator — Find your Fixed Deposit maturity amount with any compounding frequency.
- Compound Interest Calculator — See how compounding accelerates your savings growth.
- PPF Calculator — Estimate Public Provident Fund maturity with yearly breakdown.
- NPS Calculator — Plan National Pension System contributions and monthly pension.
- Income Tax Calculator — Compare Old vs New Tax Regime for FY 2025–26.
- Salary Calculator — Convert CTC to in-hand salary after all deductions.
- BMI Calculator — Check your Body Mass Index with visual gauge and health classification.
- Percentage Calculator — Calculate percentage, change, increase, decrease and reverse percentage.
- Age Calculator — Find your exact age in years, months, days, hours and minutes.