Free Online Tools & Calculators
Browse every SmartCheu calculator, converter and text utility, or jump directly to a category.
Waist-to-Height Ratio Calculator
Calculate waist-to-height ratio (WHtR) from waist and height with metric or imperial measurements.
Open tool → Health ToolsBMI Calculator
Calculate adult Body Mass Index from height and weight using metric or imperial units.
Open tool → Date & TimeTime Duration Calculator
Find elapsed hours and minutes between two clock times.
Open tool → Date & TimeDate Difference Calculator
Find the number of calendar days between two dates.
Open tool → Date & TimeAge Calculator
Calculate age in completed years, months and days between two dates.
Open tool → ConvertersData Storage Converter
Convert bytes, KB, MB, GB and TB using decimal storage units.
Open tool → ConvertersSpeed Converter
Convert km/h, mph, m/s and knots.
Open tool → ConvertersTemperature Converter
Convert Celsius, Fahrenheit and Kelvin.
Open tool → ConvertersWeight Converter
Convert kilograms, grams, pounds and ounces.
Open tool → ConvertersLength Converter
Convert meters, kilometers, centimeters, millimeters, inches, feet, yards and miles.
Open tool → Finance & ShoppingSimple Interest Calculator
Calculate simple interest and final amount.
Open tool → Finance & ShoppingLoan EMI Calculator
Estimate a fixed monthly payment for a standard amortizing loan.
Open tool → Finance & ShoppingSales Tax Calculator
Add a sales-tax percentage to a price.
Open tool → Finance & ShoppingTip Calculator
Calculate a tip, final bill and per-person split.
Open tool → Finance & ShoppingDiscount Calculator
Calculate sale price and amount saved.
Open tool → Math ToolsFraction to Percent Calculator
Convert a fraction into a percentage.
Open tool → Math ToolsRatio Simplifier
Simplify a two-number ratio to its lowest whole-number form.
Open tool → Math ToolsAverage Calculator
Find the arithmetic mean of a list of numbers.
Open tool → Math ToolsPercentage Change Calculator
Calculate percentage increase or decrease between two values.
Open tool → Math ToolsPercentage Calculator
Find what percentage one number is of another.
Open tool → Text ToolsReading Time Calculator
Estimate reading time from word count and reading speed.
Open tool → Text ToolsRemove Duplicate Lines
Remove repeated lines while keeping the first occurrence.
Open tool → Text ToolsCase Converter
Convert text to uppercase, lowercase, title case or sentence case.
Open tool → Text ToolsCharacter Counter
Count characters with and without spaces.
Open tool → Text ToolsWord Counter
Count words, characters, sentences and paragraphs instantly.
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