All Calculators
Explore all 18 free browser-based calculators from EZCalCsUSA for everyday math, percentages, money, health, dates and unit conversions.
Percentage Calculator
Find X% of any number.
Open calculator →What Percent Calculator
Find what percentage one number is of another.
Open calculator →Percentage Change Calculator
Calculate percentage increases and decreases.
Open calculator →Discount Calculator
Calculate savings and final prices after a discount.
Open calculator →Tip Calculator
Calculate tips, tax, totals and per-person amounts.
Open calculator →Basic Calculator
Perform everyday addition, subtraction, multiplication and division.
Open calculator →Age Calculator
Calculate exact age in years, months and days.
Open calculator →Date Duration Calculator
Find the calendar duration and total days between dates.
Open calculator →Date Countdown Calculator
Count down the days, hours, minutes and seconds until any date.
Open calculator →BMI Calculator
Estimate body mass index and adult BMI ranges.
Open calculator →Budget Calculator
Plan take-home income with the 50/30/20 framework.
Open calculator →Macro Calculator
Estimate daily calories and macronutrient targets.
Open calculator →Pregnancy Due Date Calculator
Estimate a pregnancy due date from the LMP date.
Open calculator →Hydration Calculator
Estimate daily water needs using weight and exercise.
Open calculator →Loan & EMI Calculator
Estimate monthly payments, total interest and repayment.
Open calculator →US Paycheck & Tax Estimator
Estimate federal, FICA, state and take-home pay.
Open calculator →Pounds to Kilograms Converter
Convert pounds and kilograms.
Open calculator →Inches to Centimeters Converter
Convert inches and centimeters.
Open calculator →Fahrenheit to Celsius Converter
Convert Fahrenheit and Celsius.
Open calculator →