All your everyday tools, in one place
Calculations, conversions, utilities — free, fast, no signup.
i.
Popular tools
Percentage calculator Calculate a percentage, an increase, a discount, or the variation between two values. Pick a mode, enter your values, the result updates live. Cooking converter (grams, spoons, cups) Convert grams, milliliters, cups and spoons for each ingredient. Equivalents take real density into account (flour is lighter than sugar). Unit converter Convert lengths, weights, volumes, temperatures, areas and speeds. All common metric and imperial units. BMI calculator Calculate your Body Mass Index from your height and weight. Interpretation based on the World Health Organization classification.
ToutUtils brings together the small practical tools you need every day: calculating a percentage, converting 200 g of flour into cups for a recipe, switching from kilograms to pounds, or checking your BMI. Each tool is designed to get straight to the point: you enter your values, you get the result. No account to create, no popups, no app to install.
ii.
Calculation & finance
Percentage calculator Calculate a percentage, an increase, a discount, or the variation between two values. Pick a mode, enter your values, the result updates live. Rule of three (cross-multiplication) Solve a rule of three (cross-multiplication): if A corresponds to B, then C corresponds to ? Enter the three known values, the fourth appears. VAT calculator (net ↔ gross) Compute net, VAT and gross amounts from either, with a selectable VAT rate (20 %, 10 %, 5.5 %, 2.1 % or custom). Tip calculator Compute the tip on a bill and the amount per person. Quick buttons 5, 10, 15, 18, 20, 25 %.
iii.
Conversions
Cooking converter (grams, spoons, cups) Convert grams, milliliters, cups and spoons for each ingredient. Equivalents take real density into account (flour is lighter than sugar). Unit converter Convert lengths, weights, volumes, temperatures, areas and speeds. All common metric and imperial units. Roman numerals converter Convert both ways between decimal and Roman numerals. Range: 1 to 3999. Number base converter (binary, octal, hex) Convert a number between the four common bases: binary (2), octal (8), decimal (10) and hexadecimal (16). Fields sync live. Bytes converter (KB, MB, GB, TB) Convert between bytes, kilo, mega, giga, tera and petabytes. Two modes: binary (1024) and decimal (1000).
iv.
Dates & time
Age calculator Enter a birthdate and get the exact age in years, months and days — plus total weeks, hours and minutes lived. Days between two dates Calculate the difference in days, weeks, months, years and business days (Mon-Fri) between two dates. Add / subtract days to a date From a date, add or subtract a number of days, weeks, months, years or business days. The tool shows the resulting date and weekday. Time duration (hours:minutes:seconds) Calculate the duration between two times, handling midnight crossover. Output in HH:MM:SS, decimal hours, minutes or seconds.
vi.
Text
Word and character counter Live count of words, characters (with or without spaces), sentences, paragraphs and estimated reading time. Case converter (uppercase, camelCase, snake_case) Transform text into 11 different case formats: UPPERCASE, lowercase, Title, camelCase, snake_case, kebab-case, CONSTANT_CASE, dot.case… Lorem ipsum generator Generate Lorem ipsum placeholder text for mockups, wireframes and UI tests. Pick paragraphs, sentences or words. URL slug generator Turn a title into a clean, readable URL slug. Strips accents, special characters and spaces, replacing them with your chosen separator. Text reverser Reverse text in three modes: character by character, word by word, or line by line.
vii.
Generators
Secure password generator Generate a strong random password. Adjust length, pick character sets, see strength updated live. UUID generator Generate one or more random UUID v4 identifiers. Multiple export formats: lowercase, uppercase, no dashes, braces. Random number generator Draw one or more random numbers in a given range. Integer or decimal, with optional unique (without-replacement) draw.