Calculators
21 daily-use calculators for percentages, dates, discounts, tips, loans, interest, grades, nutrition, taxes, retirement, and more.
Popular Tools
Percentage Calculator
Calculate percentages, percent change, increases, decreases, and quick everyday percentage questions.
Age Calculator
Calculate exact age from date of birth in years, months, days, and practical document-ready formats.
Retirement Savings Calculator
Estimate retirement savings with compound interest, monthly contributions, and expected annual return.
Available Tools
Percentage Calculator
Calculate percentages, percent-of, and percentage change.
Age Calculator
Find your exact age in years, months, and days.
Discount Calculator
Calculate sale price and savings from any discount.
Date Difference Calculator
Find the difference between two dates.
BMI Calculator
Calculate your Body Mass Index from height and weight.
Loan Calculator
Estimate monthly payments, total interest, and total cost.
Tip Calculator
Calculate tip amount and split the bill among friends.
GPA Calculator
Calculate your cumulative GPA on a 4.0 scale.
Compound Interest Calculator
See how savings grow with compound interest over time.
Unit Price Calculator
Compare two products by price per unit to find the better deal.
Margin Calculator
Calculate profit margin and markup from cost and selling price.
Average Calculator
Calculate mean, median, mode, sum, and range from a number list.
Random Number Generator
Generate random numbers within any range.
Electricity Cost Calculator
Estimate electricity cost of running any appliance.
Scientific Calculator
Full-featured calculator with trig, log, and exponents.
Mortgage Calculator
Calculate monthly payments, total interest, and loan cost.
Fraction Calculator
Add, subtract, multiply, and divide fractions.
Final Grade Calculator
Find what grade you need on your final exam.
Calorie Calculator
Calculate BMR and TDEE for weight management.
Sales Tax Calculator
Calculate sales tax amount and total price.
Retirement Savings Calculator
Estimate retirement savings with compound interest and monthly contributions.