Calculators
Percentage calculator, BMI calculator, loan calculator, mortgage calculator, tip calculator, and more.
All Calculators
BMI Calculator
Calculate your Body Mass Index (BMI) instantly using metric or imperial units. Free online BMI calculator with healthy weight range guidance for men, women, and children.
Percentage Calculator
Calculate percentages, percentage increase and decrease, what percent a number is of another, and more. Free online percentage calculator — perfect for finance, grades, and discounts.
Age Calculator
Calculate your exact age in years, months, weeks, and days from your birth date. Free online age calculator — also shows days until your next birthday and upcoming milestones.
Tip Calculator
Calculate tip amount by percentage and split bills evenly between any number of people. Free online tip calculator — perfect for restaurants, delivery, and group dining.
Date Calculator
Calculate days, weeks, months, and years between any two dates. Add or subtract days from a date. Free online date calculator — perfect for project planning and deadlines.
Discount Calculator
Calculate discount savings, sale price, and original price from any percentage off. Free online discount calculator — great for shopping, sales, coupons, and price comparisons.
Loan Calculator
Calculate monthly loan payments, total interest paid, and full amortization schedule. Free online loan calculator — ideal for personal loans, auto loans, and student debt planning.
Fuel Cost Calculator
Calculate fuel costs for any trip based on distance, fuel efficiency (MPG or L/100km), and gas price. Free online tool — perfect for road trips, commutes, and fleet management.
Mortgage Calculator
Calculate monthly mortgage payments, total interest paid, and full amortization schedule. Free online mortgage calculator — includes property tax, insurance, and PMI estimates.
Compound Interest Calculator
Calculate compound interest and long-term investment growth with daily, monthly, or yearly compounding. Free online calculator — visualize how savings and investments grow over time.
Salary Calculator
Convert salary between hourly, daily, weekly, monthly, and annual rates. Calculate gross and take-home pay. Free salary calculator — supports any currency and custom work hours.
Calorie Calculator
Calculate your daily calorie needs (TDEE) based on age, weight, height, gender, and activity level. Free online calorie calculator — includes BMR, weight loss, and weight gain targets.
GPA Calculator
Calculate your GPA (Grade Point Average) from letter grades, percentages, or point values. Supports 4.0 and 5.0 scales. Free online GPA calculator for high school and college students.
Electricity Cost Calculator
Calculate electricity costs for any appliance based on wattage, daily usage hours, and your energy rate. Free online power bill estimator — perfect for home budgeting and energy saving.
Pace Calculator
Calculate running pace, speed, distance, and finish time for any race. Free pace calculator — perfect for marathon, half-marathon, 5K, and 10K training and race planning.
Unit Price Calculator
Calculate and compare unit prices per ounce, gram, pound, liter, or any unit to find the best value. Free online unit price calculator — perfect for grocery shopping and bulk buying.
Roman Numeral Converter
Convert between Arabic numbers and Roman numerals instantly. Supports numbers 1 to 3999. Free online Roman numeral converter — useful for clock faces, film titles, outlines, and more.
Aspect Ratio Calculator
Calculate aspect ratios for images, videos, and screens. Find width, height, or ratio from any two dimensions. Free online tool — supports 16:9, 4:3, 1:1, and all standard ratios.
Time Calculator
Add and subtract time durations in hours, minutes, and seconds. Calculate elapsed time, time differences, and total work hours. Free online time calculator — perfect for tracking and billing.
Hex Calculator
Perform hexadecimal arithmetic (add, subtract, multiply, divide) and convert between hex, decimal, binary, and octal. Free online hex calculator — essential for developers and electronics.
Binary Calculator
Perform binary arithmetic (add, subtract, multiply, divide) and convert between binary, decimal, hex, and octal. Free online binary calculator — essential for computer science and programming.