# iCalcify — Free Online Calculators

> iCalcify is a free, privacy-first suite of 20+ online calculators for math, finance, health & fitness, and unit conversions. All calculations happen locally in the browser — no data is stored or transmitted.

## About
- Website: https://icalcify.com
- Author: Romik Amreliya (Software Engineer & Data Analyst)
- Contact: contact@icalcify.com
- Last Updated: June 2026

## What iCalcify Offers
iCalcify provides accurate, free, beautifully designed web-based calculators across four categories:

### Math & Basics
- [Basic Calculator](https://icalcify.com/math-calculator/basic-calculator): Addition, subtraction, multiplication, division with keyboard support.
- [Scientific Calculator](https://icalcify.com/math-calculator/scientific-calculator): Trigonometry, logarithms, square roots, exponents, memory functions.
- [Percentage Calculator](https://icalcify.com/math-calculator/percentage-calculator): Find percentages, percentage increase/decrease, and percentage of a number.

### Financial Calculators
- [Loan / EMI Calculator](https://icalcify.com/financial-calculator/loan-emi-calculator): Calculate monthly EMI, total interest, and amortization schedule for any loan.
- [Mortgage Calculator](https://icalcify.com/financial-calculator/mortgage-calculator): Estimate monthly home loan payments with down payment options.
- [Interest Calculator](https://icalcify.com/financial-calculator/interest-calculator): Simple and compound interest with multiple compounding frequencies.
- [Credit Card Payoff Calculator](https://icalcify.com/financial-calculator/credit-card-payoff-calculator): Debt-free timeline and total interest for credit card balances.
- [Investment Calculator](https://icalcify.com/financial-calculator/investment-calculator): Compound growth and SIP returns projection.
- [Step-Up SIP Calculator](https://icalcify.com/financial-calculator/step-up-sip-calculator): SIP returns with annual percentage or fixed rupee increases.
- [Discount Calculator](https://icalcify.com/financial-calculator/discount-calculator): Sale prices with single or stacked discounts.
- [Salary Calculator](https://icalcify.com/financial-calculator/salary-calculator): Convert between annual, monthly, bi-weekly, weekly, daily, and hourly pay.

### Health & Fitness Calculators
- [BMI Calculator](https://icalcify.com/health-fitness-calculator/bmi-calculator): Body Mass Index with metric/imperial support and WHO categories.
- [Calorie Calculator](https://icalcify.com/health-fitness-calculator/calorie-calculator): Daily calorie needs (BMR & TDEE) using Mifflin-St Jeor equation.
- [Body Fat Calculator](https://icalcify.com/health-fitness-calculator/body-fat-calculator): Body fat percentage using US Navy method.
- [Lean Body Mass Calculator](https://icalcify.com/health-fitness-calculator/lean-body-mass-calculator): LBM using the Boer formula.
- [Ideal Weight Calculator](https://icalcify.com/health-fitness-calculator/ideal-weight-calculator): Healthy weight range using Robinson, Miller, Devine, and Hamwi formulas.
- [Age Calculator](https://icalcify.com/health-fitness-calculator/age-calculator): Exact age in years, months, and days.

### Online Converters
- [Unit Converter](https://icalcify.com/online-converter/unit-converter): Length, weight, temperature, area, volume conversions.
- [Speed Calculator](https://icalcify.com/online-converter/speed-calculator): Speed, distance, and time with km/h, mph, m/s support.
- [Currency Converter](https://icalcify.com/online-converter/currency-converter): 30+ world currencies with exchange rates.
- [Data Storage Converter](https://icalcify.com/online-converter/data-storage-converter): Bits, bytes, KB, MB, GB, TB, PB conversions.
- [Voltage Drop Calculator](https://icalcify.com/online-converter/voltage-drop-calculator): Electrical wiring voltage drop and wire gauge selection.
- [Fuel Cost Calculator](https://icalcify.com/online-converter/fuel-cost-calculator): Trip fuel costs based on distance and fuel efficiency.
- [Timezone Converter](https://icalcify.com/online-converter/timezone-converter): Convert time between any two world time zones.

## Trust & Accuracy
- Formulas sourced from WHO, CDC, NIH, NIST, and Investopedia
- Edge-case tested for precision (6-10 decimal places)
- Privacy-first: all calculations run in-browser with JavaScript
- No accounts, no data collection, no paywalls

## Blog & Educational Content
- https://icalcify.com/blog — In-depth articles on finance, health, and math concepts

## Legal
- [Privacy Policy](https://icalcify.com/privacy-policy)
- [Terms of Service](https://icalcify.com/terms-of-service)
- [Disclaimer](https://icalcify.com/disclaimer)