Everyday Life

Is It a Leap Year? — Leap Year Checker

Built by Kevin Glover · @gloverbuilds · Verified formula

Check if any year is a leap year. See the next leap year and the rule behind the calendar.

📅 Updated April 2026 ✅ Formula verified 📖 4 min read 🆓 Free · No sign-up

In this article

The Leap Year Rule
Leap Year Fun Facts

Regel

Teilbar durch 4: ja. AUSSER teilbar durch 100: nein. AUSSER teilbar durch 400: ja. 2024: ja. 1900: nein. 2000: ja. Der 29. Februar korrigiert, dass das Jahr 365,2422 Tage hat.

Trivia

Am 29. Feb. Geborene: 1:1.461 Wahrscheinlichkeit (~0,07%). Naechste Schaltjahre: 2028, 2032.

⚡ CalcWolf Insight

The Gregorian calendar is so accurate that it only drifts by 1 day every 3,236 years. The Julian calendar it replaced drifted by 1 day every 128 years. By the time the Gregorian calendar was adopted in 1582, the Julian calendar had drifted by 10 days.

Frequently asked questions

2024 Schaltjahr?▾

Ja. Naechstes: 2028.

Warum nicht alle 100 Jahre?▾

Korrektur: Jahr = 365,2422 Tage (nicht 365,25). Ohne: 3 Tage Verschiebung alle 400 Jahre.

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Kevin Glover · @gloverbuilds

Founder, CalcWolf · GLVTS · Blickr

All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →