💰 Finance & Money
12 CalculatorsMortgage Calculator
Monthly payments, total interest, and full amortization schedule.
PopularLoan Calculator
Calculate monthly payments for any personal or auto loan.
Compound Interest
See how your savings or investments grow over time.
HotCredit Card Payoff
Find out how long to pay off your balance and total interest paid.
Salary Calculator
Convert hourly, weekly, monthly and annual salary figures.
Tip Calculator
Split a restaurant bill and calculate tip per person instantly.
ROI Calculator
Calculate return on investment and profit percentage.
Percentage Calculator
What is X% of Y? Percentage change, increase, decrease.
Sales Tax Calculator
Add or remove sales tax from any price instantly.
Retirement Savings
How much you need to save monthly to retire comfortably.
Currency Converter
Convert between major world currencies with live-style rates.
Inflation Calculator
See how inflation erodes purchasing power over time.
❤️ Health & Fitness
10 CalculatorsBMI Calculator
Body mass index with healthy weight range and category.
PopularCalorie Calculator
Daily calorie needs based on your goal: lose, maintain, or gain.
HotMacro Calculator
Protein, carb and fat targets for your fitness goal.
Body Fat Calculator
Estimate body fat percentage using measurements.
Running Pace Calculator
Calculate pace, finish time, or distance for any run.
Water Intake Calculator
Daily hydration needs based on weight and activity level.
Sleep Calculator
Find the best bedtime based on sleep cycles and wake time.
Pregnancy Due Date
Calculate expected due date from last menstrual period.
Heart Rate Zones
Target heart rate zones for fat burn and cardio training.
Ideal Weight Calculator
Estimate healthy weight range for your height and frame.
📐 Math & Science
8 CalculatorsScientific Calculator
Full scientific calculator with trig, log, and exponent functions.
Unit Converter
Length, weight, volume, temperature, speed and more.
PopularGPA Calculator
Calculate cumulative GPA from course grades and credits.
Quadratic Equation
Solve ax² + bx + c = 0 and find roots instantly.
Probability Calculator
Combinations, permutations and event probabilities.
Geometry Calculator
Area, perimeter, and volume for circles, rectangles, triangles.
Speed Distance Time
Solve for speed, distance, or time given the other two values.
Number Base Converter
Convert between binary, octal, decimal, and hexadecimal.
🌟 Everyday Life
6 CalculatorsAge Calculator
Calculate exact age in years, months, and days from birthdate.
Date Difference
Number of days, weeks, and months between two dates.
Time Zone Converter
Convert time between major world time zones instantly.
Fuel Cost Calculator
Estimate trip fuel cost based on distance, mpg and gas price.
Cooking Converter
Convert cups, tablespoons, teaspoons, ml, and ounces.
Random Number Generator
Generate random numbers within any range you specify.