Fractions and percentages are two ways to show parts of a whole. A fraction uses a numerator and denominator. A percentage shows the value out of 100. Use the Fraction Calculator to simplify or combine fractions. Then use the Percentage…
Reverse percentage calculations help you find the original number before a percentage increase or decrease. This is useful for sale prices, tax, tips, markups, discounts, and price changes. Use the Percentage Calculator for quick percentage results, then use the formulas…
An average percentage combines two or more percentage values into one summary number. It is useful for grades, survey results, sales performance, completion rates, and business reports. Use the Percentage Calculator when you need to calculate each percentage first. Then…
Your daily calorie needs are the number of calories your body uses in a normal day. This includes calories burned at rest, during movement, during exercise, and while digesting food. Use the Calorie Calculator to estimate your daily needs. You…
Homemade meals can be harder to track than packaged foods because recipes include several ingredients. A recipe calorie calculator method adds up all ingredients, then divides the total by servings. Use the Calorie Calculator to understand your daily calorie target.…
If you want to gain weight, you need to eat more calories than your body burns. This is called a calorie surplus. The right surplus helps you gain steadily without adding weight too quickly. Start with the Calorie Calculator to…
Compound interest means you earn interest on your original money and on the interest already earned. Over long periods, this can make a large difference. Use the Compound Interest Calculator to test your own starting amount, contribution, rate of return,…
Counting days between dates is useful for deadlines, billing cycles, travel plans, school assignments, work schedules, legal timelines, and project planning. Use the Date Calculator to find the number of days between two dates or to add and subtract days…
GPA, or grade point average, converts course grades into a single number. Many schools in the United States and Canada use a 4.0 scale, although grading rules can vary. Use the GPA Calculator to enter courses, grades, and credit hours.…
BMI and body fat percentage both estimate body size, but they answer different questions. BMI compares weight with height. Body fat percentage estimates how much of your weight is fat mass. Start with the BMI Calculator for a quick screening…