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Math
Prime Number Checker
Check if a number is prime, calculate its prime factorization, and find the next prime numbers.
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Mathematics – Calculators
Free math calculators: triangle calculator, circle calculator, volume calculators, multiplication tables, Roman numerals, and other geometry and algebra helper calculators.
40 calculators
39 calculators
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Math
Function Calculator
Scientific calculator for sin, cos, tan, log, powers, and other mathematical calculations.
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Math
Multiplication Tables
Practice multiplication tables 1–12 interactively or browse the multiplication table.
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Math
Triangle Calculator
Calculate the area, sides, and angles of a triangle based on the given values.
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Math
Cylinder Calculator
Calculate the volume and surface area of a cylinder based on the radius and height.
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Math
Online Calculator
Basic calculator for addition, subtraction, multiplication, and division as well as percentages.
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Math
Sphere Calculator
Calculate the volume and surface area of a sphere based on the radius or diameter.
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Math
Roman Numerals Converter
Convert Arabic numbers to Roman numerals and vice versa.
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Math
Circle Area Calculator
Calculate the area, circumference, and diameter of a circle based on the radius.
Other categories
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Time & Dates
Free time calculators: age calculator, date difference, time zone calculator, countdown, and other date calculators.
19 calculators🚗
Cars & Travel
Free car calculators: fuel consumption, electric car charging, travel budget, driving cost and other calculators.
16 calculators🏠
Home & Construction
Free home calculators: paint calculator, concrete calculator, roof calculator, heating cost calculator, solar panel calculator, and over 20 other home calculators.
40 calculators💰
Money & Finance
Free financial calculators: loan, savings, investment, compound interest, budget and business calculators.
40 calculators❤️
Health
Free health calculators: BMI calculator, calorie calculator, BMR, body fat percentage, running pace, pregnancy calculator, and other wellness calculators.
43 calculators🔢
General Calculators
Free general calculators: percentage calculator, unit converters, median calculator, binary calculator, random number generator, and other helper calculators.
27 calculators