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189 tools
This macro calculator estimates the macronutrient needs of a person based on their age, physical characteristics, activity level, and bodyweight goals.
This free protein calculator estimates the amount of protein a person needs each day to remain healthy based on certain averages and recommendations.
Use this fraction calculator to perform all the main calculations on simple or mixed fractions. We support addition, subtraction, multiplication, division of fractions, fraction simplification, and two types of conversions: fraction to decimal and decimal to fraction.
This free percentage calculator computes a number of values involving percentages, including the percentage difference between two given values.
This ratio calculator solves ratios, scales ratios, or finds the missing value in a set of ratios. It can also give out ratio visual representation samples.
This free tip calculator computes tip amounts for various situations. It can also calculate the tip amount split between a given number of people.
Be prepared for cold weather with the wind chill calculator. Using the air temperature and wind speed, our calculator knows how to calculate wind chill precisely, so you know how cold it's going to feel when you step outside.
This calculator estimates heat index temperature felt by the human body based on the actual measured air temperature together with humidity level or dew point.
This free weight calculator converts between common units of weight and mass. Also, learn more about the origins of different units of weight.
Calculate your age accurately by a set date with our easy-to-use age calculator tool. Answer the question, how many days old am I instantly! Try it now.
This free time calculator can add or subtract time values in terms of number of days, hours, minutes, or seconds. Also, learn the different concepts of time.
HELOC calculator is a tool that determines your eligibility for a Home Equity Line of Credit. It'll also help plan the associated payments during the draw period and the repayment period required to pay off the HELOC loan.
Free calculator for finding the best way to pay off multiple debts such as those related to credit cards, auto loans, or mortgages.
Three free calculators for profit margin, stock trading margin, or currency exchange margin calculations. Learn the different definitions of margin in finance.
Free Body Mass Index calculator gives out the BMI value and categorizes BMI based on provided information from WHO and CDC for both adults and children.
This free ideal weight calculator estimates ideal healthy bodyweight based on age, gender, and height based on several popular formulas.
This free lean body mass (LBM) calculator estimates LBM based on body weight, height, age, and gender. It compares the results of several popular formulas.
This free calculator estimates a person's one rep max (1RM) based on the number of repetitions they can perform with a given weight.
This calculator can calculate the probability of two events, as well as that of a normal distribution. Also, learn more about different types of probabilities.
Free compound interest calculator to convert and compare interest rates of different compounding periods, or to gain more knowledge on compound interest.
This free binary calculator can add, subtract, multiply, and divide binary values, as well as convert between binary and decimal values.
This free volume calculator computes the volumes of common shapes, including sphere, cone, cube, cylinder, capsule, cap, conical frustum, ellipsoid, and more.
Free calculator to estimate the ending balance and net return of mutual funds. It can also calculate the IRR after accounting for charges and fees.
Free calculator to find the sales tax amount/rate, before tax price, and after-tax price. Also, check the sales tax rates in different states of the U.S.
