Calculateurs et convertisseurs gratuits

Screen, print, video, storage, bitrate, and device-spec calculators.

Unit, data, color, size, speed, pressure, and measurement converters.

JSON, CSV, encoding, hashes, timestamps, regex, SEO, and webmaster tools.

No-upload browser tools for images, text files, QR codes, SVG, and PDF helpers.

Date math, business days, time zones, week numbers, deadlines, and planners.

Percentage, discount, price, margin, markup, invoice, and everyday calculators.

Loan, savings, interest, payoff, ROI, and investment calculators with clear disclaimers.

Wellness and fitness calculators that run locally and explain their formulas.

Paint, tile, flooring, concrete, garden, energy, and room calculators.

Fractions, ratios, statistics, geometry, GPA, and student math helpers.

Country, currency, calling code, fuel, luggage, and public-holiday helpers.

Password, passphrase, random picker, team, dice, and local privacy utilities.