Online Calculator
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About Us
We build 100+ free, private calculators for everyone — finance, health, math, and more. No ads, no tracking, no paywalls.
Calculators We Offer
Online-Calculator.work provides a growing suite of 100+ free tools across 7 categories:
Investment & Savings
SIP Calculator SWP Calculator SIP & SWP Compound Interest FD Calculator Interest Earned Retirement ROI Calculator CAGR Calculator Lumpsum Stock Profit Stock Average PPF Calculator NPS Calculator RD Calculator Step-up SIP Dividend Yield Mutual Fund Returns FIRE Calculator Brokerage
Loan & Mortgage
EMI Calculator Simple Interest Mortgage Home Loan Car Loan Personal Loan Loan Amortization Loan Eligibility Credit Card EMI Debt Payoff Reverse Mortgage APR Calculator Interest Rate Debt Consolidation Loan Comparison Business Loan Education Loan
Tax & Salary
Tax Calculator Salary Calculator Inflation GST Calculator HRA Calculator Gratuity EPF Calculator Sales Tax VAT Calculator TDS Calculator Overtime Pay Bonus Calculator Capital Gains Tax Professional Tax
Health & Fitness
BMI Calculator Calorie Calculator BMR Calculator Pregnancy Due Date Ovulation Body Fat Ideal Weight Target Heart Rate Heart Rate Water Intake Protein Intake BAC Calculator Body Surface Area Pace Calculator
Math & Education
Percentage Currency Converter Scientific Simple Calculator Fraction Average Ratio Calculator Unit Converter Speed & Distance LCM Calculator HCF / GCD Square Root Standard Deviation Mean, Median, Mode Probability Permutation & Combination Logarithm Algebra Equation Solver Matrix
Date & Time
Age Calculator Date Calculator Time Calculator Working Days Time Duration Countdown Timer Time Zone Converter Anniversary Leap Year
Business & Commerce
Our Mission
To make calculations accessible and transparent for everyone — one calculator at a time. We're building a comprehensive suite of tools that are accurate, private, and completely free.
- No Ads — Clean interface without distracting advertisements.
- No Tracking — Zero cookies, analytics trackers or data harvesting.
- No Paywalls — Every feature is free, forever.
- Open Formulas — We explain every calculation so you know exactly how numbers are derived.
- Accessible — Keyboard-navigable, ARIA-labelled, and screen-reader friendly.
- Responsive — Works seamlessly on phones, tablets and desktops.
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