Birthday Calculator & Free Birthday Wish Video Maker
Create a birthday wish video
A 16-second vertical video (9:16) with animated Happy Birthday text, music, the birthday person's name and photo, and your small photo and name for you.
Your photos and music stay on your device. Keep this tab open for the 16 seconds it takes to make the video.
Countdown to the next birthday
Counts down to 12:00 AM on the morning of the birthday.
- Age now
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- Days lived
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- Born on a
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- Zodiac sign
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- Next birthday
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- Half birthday
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- How far you are into this birthday year
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Upcoming birthdays
| Date | Weekday | Turning | Days to go |
|---|
Enter a date of birth
Related calculators
Birthday countdown formula with example
To count the days left, find the next birthday date and subtract today's date from it. The next birthday is this year's date if it has not passed yet, and next year's date if it has.
Next birthday = This year's birthday, if it is today or later
Otherwise next year's birthday
Days left = Next birthday date − Today's date
Age turning = Next birthday year − Birth yearExample: born 15/08/2000, today is 19/09/2026
- Next birthday: 15/08/2026 has already passed, so the next birthday is 15/08/2027.
- Days left: 11 days are left in September (30 − 19), October to July add 304 days (31 + 30 + 31 + 31 + 28 + 31 + 30 + 31 + 30 + 31), and August adds 15. That gives 11 + 304 + 15 = 330 days.
- Age turning: 2027 − 2000 = 27.
- Weekday: 15/08/2027 falls on a Sunday.
The next birthday is Sunday, 15 August 2027, in 330 days, when the age becomes 27.
How to Make a Free Birthday Wishes Video with Name, Photo and Music
Make a birthday wish video online in your browser, with no sign-up and no watermark. The vertical 9:16 video (720 × 1280, about 16 seconds) fits WhatsApp Status, Instagram Stories and Reels, and YouTube Shorts.
- Open the video maker. Press Make birthday video next to the Calculate button. On the birthday itself, it opens automatically after you press Calculate birthday.
- Add the name and photo. Crop with Zoom and Move, remove the photo background, or pick a Circle, Square, Rounded square, Heart or Star frame.
- Add your name and photo as the sender of the wish.
- Customize. Choose a background, birthday cap, cake icon and birthday music, or upload your own.
- Press Create video and keep the tab open while it records.
- Download or share. Press Download video, or Share video on your phone.
Every birthday wishes video includes animated Happy Birthday letters, balloons, confetti, fireworks, a birthday cake and music. It can also show the age.
Zodiac sign dates
The calculator uses the standard Western zodiac dates below. The exact changeover can move by a day from year to year, so a birthday on the first or last day of a sign is worth checking in an astrology almanac.
| Sign | Dates |
|---|---|
| Aries | 21 March to 19 April |
| Taurus | 20 April to 20 May |
| Gemini | 21 May to 20 June |
| Cancer | 21 June to 22 July |
| Leo | 23 July to 22 August |
| Virgo | 23 August to 22 September |
| Libra | 23 September to 22 October |
| Scorpio | 23 October to 21 November |
| Sagittarius | 22 November to 21 December |
| Capricorn | 22 December to 19 January |
| Aquarius | 20 January to 18 February |
| Pisces | 19 February to 20 March |
Birthday calculator FAQs
How do I calculate how many days are left until my birthday?
Example: for a birthday on 15 August, on 19 September 2026 this year's birthday has passed, so the next one is 15 August 2027. Days left = 11 (rest of September) + 304 (October to July) + 15 (August) = 330 days.
Why does the live countdown show one day fewer than the days left?
Example: at 10:30 AM on 19 September 2026, a birthday on 15 August 2027 is 330 calendar days away, but the countdown reads 329 days, 13 hours and 30 minutes.
How do I find out which day of the week I was born?
Example: 15 August 2000 was a Tuesday. The same date in 2001 was a Wednesday, because 365 days is 52 weeks and 1 day.
When is my birthday if I was born on 29 February?
Example: for a 29 February 2004 birthday, on 19 September 2026 the next birthday is Sunday, 28 February 2027, which is 162 days away. The next real 29 February is in 2028.
How do I make a birthday wish video for free?
Enter the name and date of birth above. When today is the birthday the video maker opens on its own, and on any other day you can press Make birthday video next to the Calculate button. Add a photo of the birthday person, add your own name and a small photo, then press Create video. About 16 seconds later you can watch, download or share it.
How do I share the birthday video on WhatsApp or Instagram?
On most phones, press Share video and pick WhatsApp, Instagram or any other app from the share sheet. If your browser cannot share files, press Download video and attach the file from your gallery. Chrome, Edge and Safari usually save an MP4 file. If your browser saves a WebM file and an app will not accept it, make the video again in Chrome.
Download the video as happy-birthday-priya.mp4, open WhatsApp, choose the chat or your status, and pick the file from your gallery.
Are the photos I add uploaded or stored?
No. Your photos, your music file and the video stay in your browser. They are not uploaded to a server. If you close the tab before downloading, the video is lost, so press Download video first.
What is a half birthday and how is it calculated?
A half birthday falls exactly six months after a birthday. Add 6 months to the birth month and keep the same day.
Example: for a birthday on 15 August, the half birthday is 15 February. From 19 September 2026, the next one is Monday, 15 February 2027, which is 149 days away.