Calculatrices en Ligne Gratuites
Calculatrices précises pour usage quotidien et professionnel. Sans publicités intrusives, sans inscription, entièrement gratuit.
Age Calculator
Calculate exact age in years, months, days, hours and minutes from a birth date.
BMI Calculator
Calculate Body Mass Index with metric or imperial units and see your category.
Percentage Calculator
Six ways to calculate percentages, increases, decreases and differences.
Unit Converter
Convert length, weight, temperature, area, volume, speed, time and data.
Read Time Estimator
Paste any text and instantly see reading time, speaking time and readability.
Number Base Converter
Convert between binary, octal, decimal, hexadecimal and any custom base.
Hours to Days
Convert hours to days with configurable decimal precision and optional "days" suffix.
Time to Military Time
12-hour or 24-hour clock to military format with optional seconds, colons and "hours" suffix.
Loan / EMI Calculator
Monthly instalment, total interest and a yearly amortization table for any loan.
Mortgage Calculator
Full monthly payment — principal & interest plus tax, insurance and HOA.
Tip Calculator
Calculate the tip and split the bill between any number of people, with rounding.
Discount Calculator
Sale price and savings from a percentage discount, including a stacked second discount.
VAT / Sales Tax Calculator
Add or remove VAT / GST / sales tax at any rate. See net, tax and gross.
Date Difference Calculator
Exact years / months / days between two dates, plus total days, weeks and weekdays.
Countdown Timer
Live countdown of days, hours, minutes and seconds to any date — deadlines, launches, new year.
Timer / Stopwatch
Stopwatch, countdown and Pomodoro timer all in one. Lap times, alarm chime and auto work/break cycles.
Questions Fréquentes
Les calculatrices sont-elles précises ? expand_more
Oui. Elles utilisent l'arithmétique JavaScript standard avec précision à virgule flottante 64 bits.
Mes données de calcul sont-elles sauvegardées ? expand_more
Non. Tout le traitement se fait dans votre navigateur, rien n'est sauvegardé.
Puis-je utiliser les calculatrices financières pour de vraies décisions ? expand_more
Elles fournissent des estimations utiles. Pour des décisions importantes, consultez un conseiller financier.