All Tools

Generate random lottery numbers for Powerball, Mega Millions, EuroMillions, VietLott, and 50+ lotter...

Make fair random selections with a customizable spinning wheel. Perfect for lucky draws, giveaways,...

Roll virtual dice online — D4, D6, D8, D10, D12, D20, D100, or custom. Animated 3D dice, sound effec...

Generate random integers, decimals, or percentages within any range. Customize with step, filter, so...

Browse public holidays for 199 countries. Filter by holiday type, navigate years, and see the next u...

Calculate sunrise, sunset, day length, golden hour, and twilight times for any location worldwide.

Calculate your pregnancy due date based on your last period, conception date, or known due date. Tra...

View solar and lunar dates side by side with traditional almanac details including Can Chi, zodiac,...

Convert dates between solar (Gregorian) and lunar calendars with Can Chi, zodiac, solar terms, and h...

Add or subtract years, months, weeks, and days from any date to find the resulting date instantly.

Find the week number for any date or look up date ranges by week number. Supports ISO 8601 and US we...

Find which day of the week any date falls on. Instantly see the weekday name, ISO day number, week n...