Video Bitrate Calculator
Updated October 2026 · By BlookMind
Minutes : seconds of your full video.
Only used for the upload-time estimate.
Example: 16 for WhatsApp, 10 for Discord, 25 for email.
Used for the quality verdict — can this size hold this resolution?
At these settings: 30 sec · 2 min · 5 min · 10 min sizes appear here.
Too big
Too big
Too big
Fits ✓
| Same video in… | Video Bitrate | File Size | vs H.264 |
|---|---|---|---|
| H.264 (AVC) | — | — | 100% |
| H.265 (HEVC) | — | — | ~45% smaller |
| AV1 | — | — | ~50% smaller |
Sizes use binary MB (1 MB = 1,024 KB) — the same unit your computer and Discord show. Real files can vary ±10% with motion and encoder settings. Everything runs in your browser; nothing is uploaded.
Every video you export asks you one quiet question: how much data should each second carry? That number is the bitrate, and it decides two things at the same time — how sharp your video looks, and how big the file becomes. Guess it too low and your upload turns soft and blocky. Guess it too high and you wait forever for a huge file that looks no better. Our video bitrate calculator removes the guesswork. Tell it your resolution, frame rate and duration, and it gives you the exact bitrate to export at — plus the file size that bitrate will create. On this page you will also learn how to calculate video bitrate by hand, see the best bitrate for 1080p, 4K and every common resolution, and check your numbers against YouTube, TikTok, WhatsApp and Discord before you render.
What Makes This Video Bitrate Calculator Different?
Most calculators on the internet do only half the job. They take your settings and give you one number. Ours was built after studying what creators actually struggle with, and every feature below exists to solve one real problem.
Two-Way Calculator — Settings to Size, and Size to Settings
Mode A works like a normal video file size calculator: pick a resolution, frame rate and duration, and see the recommended bitrate and the estimated file size together. Mode B works in reverse. You start from a fixed file size — say 16 MB for WhatsApp — and the tool tells you the exact bitrate your video must be exported at to land on that size. Most top-ranking calculators offer only one direction; this one gives you both, plus the verdict and fit checks below.
One-Click Platform Presets
Tap a preset and every field fills itself: YouTube 1080p, YouTube 4K, TikTok and Reels vertical video, the WhatsApp 16 MB limit, the Discord 10 MB limit, and the classic 25 MB email and Zoom ceiling. The preset system saves you from memorising platform rules and prevents the most common beginner mistake — exporting a beautiful video that is simply too large to send.
Plain-Words Quality Verdict
Numbers alone do not tell you if a video will look good. So the calculator compares your result with YouTube's official recommended range and answers in simple words: you are in the sweet spot, your bitrate is too low and the picture may look soft, or your file is bigger than it needs to be. A green message means go. A pink warning means fix one setting first.
Platform Fit Checker
Before you export, see at a glance whether your finished file fits the places you want to send it. Green "Fits" and red "Too big" badges check your video against WhatsApp (16 MB), Discord free uploads (10 MB), email and Zoom (25 MB) and Telegram (2 GB). If a file is too big, you do not need a new plan — shrink it in one click with our free video compressor, which hits your target size while keeping the picture sharp.
Live Codec Comparison — H.264 vs H.265 vs AV1
The codec you choose changes everything. The same video that needs 8 Mbps in H.264 needs only about 4.4 Mbps in H.265 (HEVC) and roughly 4 Mbps in AV1, at the same visual quality. Our table updates live as you change settings, so you can see exactly how much file size a modern codec saves you before you commit to a long render.
Content Type and Audio Controls
A quiet talking-head video and a fast gaming clip at the same resolution do not need the same bitrate. Choose low, normal or high motion and the recommendation adjusts — high-motion content honestly needs up to 30% more data. You also pick the audio bitrate separately, from voice-only 96 kbps up to the 384 kbps stereo YouTube allows, because audio is part of your file size too.
Upload Time and Storage Estimates
Add your internet upload speed and the tool estimates how long the finished file will take to upload. The per-minute size figure also works as a quick storage planner: multiply it by your recording length and you know exactly how much card or disk space a shoot will eat before you press record.
Copy My Settings Button
When your numbers look right, one click copies a clean summary — video bitrate in Mbps and kbps, total bitrate, and estimated file size. Paste it into your notes, send it to your editor, or keep it beside you while you set up Premiere Pro, DaVinci Resolve, OBS or HandBrake. No re-typing, no mistakes.
What Is Video Bitrate? (In Simple Words)
Video bitrate is the amount of data used to store one second of your video. It is measured in Mbps (megabits per second) or kbps (kilobits per second). Think of it like water flowing through a pipe. A wide pipe lets more water pass every second. In the same way, a higher bitrate lets more picture detail pass every second.
Three settings decide how much bitrate a video needs. Resolution is the number of pixels in each frame — more pixels need more data. Frame rate is how many frames appear each second — 60 fps shows twice as many frames as 30 fps, so it needs more data too. And the codec is the technology that packs the data — newer codecs like H.265 and AV1 pack the same picture into fewer bits than the older H.264.
Here is the part many guides skip: bitrate is a balance, not a race. Past the right point for your resolution, extra bitrate adds file size but no visible quality. That right point is called the sweet spot, and finding it is the whole job of a bitrate calculator.
How to Calculate Video Bitrate (The Formula)
If you ever need the math without a tool, it is simpler than it looks. Everything starts from one line:
File size = Bitrate × Duration ÷ 8
And turned around: Bitrate = (Target file size × 8) ÷ Duration
The ÷ 8 exists because there are 8 bits in 1 byte. Bitrate counts bits; file size counts bytes.
A real example. You have a 10-minute video (600 seconds) and it must fit in exactly 100 MB. Bitrate = (100 × 8) ÷ 600 = about 1.33 Mbps total. Your audio needs 128 kbps (0.128 Mbps), so the video itself gets roughly 1.2 Mbps. That is quite low for 1080p — which tells you, before you render anything, that this video should be exported at 720p or 480p to look clean, or sent in a bigger size. Doing this honest check first is exactly how professionals avoid blurry uploads. For Reels specifically, you can also run your export through our Reels blur risk calculator to see whether Instagram is likely to crush its quality.
Recommended Bitrate Chart by Resolution (2026)
These figures follow YouTube's official recommended upload encoding settings for standard (SDR) video in H.264. They assume 192 kbps AAC audio. In H.265 you can safely use about 45% less; in AV1, about 50% less.
| Resolution | Frame Rate | Recommended Bitrate | File Size per Minute |
|---|---|---|---|
| 720p (1280×720) | 30 fps | 5 Mbps | ~37 MB |
| 720p (1280×720) | 60 fps | 7.5 Mbps | ~55 MB |
| 1080p (1920×1080) | 30 fps | 8 Mbps | ~59 MB |
| 1080p (1920×1080) | 60 fps | 12 Mbps | ~87 MB |
| 1440p (2560×1440) | 30 fps | 16 Mbps | ~116 MB |
| 1440p (2560×1440) | 60 fps | 24 Mbps | ~173 MB |
| 4K (3840×2160) | 30 fps | 35–45 Mbps | ~252–323 MB |
| 4K (3840×2160) | 60 fps | 53–68 Mbps | ~380–488 MB |
The Best Bitrate for 1080p
The best bitrate for 1080p at 30 fps is 8 Mbps for uploads, and 12 Mbps at 60 fps. That is YouTube's own recommendation, and years of creator testing agree with it. For a talking-head or screen recording, you can go a little lower — around 6 Mbps — because still scenes are easy to compress. For gaming, sports or fast camera movement, go a little higher, up to 12–16 Mbps at 60 fps. One honest warning: exporting 1080p at 30 or 40 Mbps does not make it look like 4K. It only makes the file three to five times bigger, and platforms will compress it back down anyway. If a finished 1080p file still looks soft after a correct export, the problem is usually the source footage, not the bitrate — our video quality enhancer can sharpen and clean up weak clips before you upload them.
Video Bitrate for YouTube Uploads
The right video bitrate for YouTube matters more than most people think, because YouTube re-encodes every single upload. Your file is the raw material for all the quality levels YouTube serves to viewers. Feed it too little data and even the "1080p" option YouTube creates will look muddy. Feed it the recommended numbers from the chart above and every version comes out cleaner.
- Upload a little above the floor if you can. Exporting 20–50% above the minimum gives YouTube's encoder better material and survives the re-encode with more detail.
- Use VBR, 2-pass if your editor offers it (explained below), and always match your source frame rate.
- The 1440p trick: exporting a 1080p video in a 1440p frame can unlock YouTube's better quality playback codec on many uploads. It costs more upload time, so use it for your most important videos.
- Audio: 320–384 kbps AAC stereo at 48 kHz is YouTube's top recommendation.
Bitrate for TikTok, Reels and Shorts
Vertical platforms re-encode everything aggressively, so the goal changes: give them a clean, correct file and do not waste size. Export at 1080×1920, 30 fps, with 6–10 Mbps in H.264. That sits comfortably inside the sweet spot for phone screens. Going far above 10 Mbps only slows your upload — TikTok and Instagram will squeeze the file back down to their own levels regardless. If your original recording is much larger, pre-compress it yourself with a video compressor so you, not the platform, control how the quality is reduced.
What Fits Inside WhatsApp, Discord, Email and Zoom Limits?
Sending limits are where bitrate math earns its keep. At 8 Mbps, one second of video is about 1 MB — so a 16 MB WhatsApp limit holds only about 16 seconds of full-quality 1080p. This table shows the honest picture at common settings:
| Platform / Limit | At 1080p (8 Mbps) | At 720p (5 Mbps) | Smart Move |
|---|---|---|---|
| WhatsApp video — 16 MB | ~16 seconds | ~26 seconds | Send as a document (up to 2 GB) for full quality, or compress to 16 MB |
| Discord free — 10 MB | ~10 seconds | ~16 seconds | Use Mode B of the calculator, then compress to exactly 10 MB |
| Email / Zoom — 25 MB | ~25 seconds | ~40 seconds | 720p plus a target-size export fits most short clips |
| Telegram — 2 GB | ~34 minutes | ~55 minutes | No compression needed for normal videos |
Mode B of our calculator exists for exactly this table. Enter the limit, enter your duration, and it hands you the one bitrate number that makes your video fit — no trial-and-error renders.
CBR vs VBR — Which One Should You Choose?
CBR (Constant Bitrate) keeps the same bitrate for every second of the video. Simple scenes and complex scenes get identical data. That makes file size perfectly predictable, which is why live streaming always uses CBR — a stream cannot pause to think. VBR (Variable Bitrate) is smarter: it gives more data to busy, detailed scenes and less to quiet ones, so the same average bitrate produces a visibly better picture. For uploads, downloads and anything you export as a file, VBR is the better choice. For live streaming, choose CBR. Two-pass VBR, where the editor studies the whole video before encoding it, gives the best quality of all but takes the longest.
Do Not Forget the Audio Bitrate
Your file's total bitrate is video plus audio, and the audio share surprises people on tight limits. On a 16 MB WhatsApp export, choosing 256 kbps audio instead of 128 kbps can eat the space of several seconds of picture. Simple rules: 96 kbps is fine for voice-only recordings, 128 kbps suits most social video, 192 kbps is a safe quality choice, and 256–384 kbps is for music-heavy YouTube uploads. Our calculator always shows the combined total, so the size you see is the size you truly get.
5 Bitrate Mistakes That Make Videos Look Bad
- Exporting 4K at a 1080p bitrate. A 4K frame has four times the pixels of 1080p. At 8 Mbps it starves, and looks worse than honest 1080p.
- Ignoring frame rate. 60 fps needs roughly 50% more bitrate than 30 fps at the same resolution. Copying 30 fps settings onto a 60 fps export is a classic cause of blur.
- Trusting the "High Quality" preset blindly. Preset names mean different numbers in every app. Check the actual Mbps before you render.
- Re-exporting an already compressed video. Every re-encode throws detail away. Always export from your original project or source file.
- Forgetting that platforms re-encode. Uploading a giant file does not protect quality — matching the platform's recommended bitrate does.
How to Check the Bitrate of a Video You Already Have
On Windows, right-click the file, open Properties → Details, and look for "Total bitrate". On a Mac, open the file in QuickTime and press Command + I. In VLC on any system, play the file and open Tools → Codec Information. Free tools like MediaInfo show the full picture — video bitrate, audio bitrate, codec and frame rate together. Compare the number you find with the chart on this page: if your 1080p file sits far below 8 Mbps, you have found the reason it looks soft.
The simple workflow: calculate your bitrate here → export with that number → if the file must shrink further, compress it with the free BlookMind video compressor instead of guessing new settings → upload with confidence. Explore the rest of the toolkit any time on our free AI tools page.
Frequently Asked Questions
What is a good video bitrate for 1080p?
8 Mbps at 30 fps and 12 Mbps at 60 fps, in H.264. That is YouTube's official recommendation. Calm content like talking heads can use slightly less, and fast gaming or sports content looks better slightly higher.
Is 6000 kbps enough for 1080p?
For live streaming, yes — 6,000 kbps (6 Mbps) is the standard 1080p streaming bitrate and Twitch's usual cap. For a video you upload to YouTube, 6 Mbps sits a little below the recommended 8 Mbps, so fast or detailed scenes may look slightly soft. Use 8 Mbps or more for uploads when you can.
Is 10,000 kbps a good bitrate for 1080p?
Yes. 10,000 kbps (10 Mbps) is above YouTube's 8 Mbps floor for 1080p at 30 fps, so it gives the re-encode healthy headroom, and it is close to ideal for 1080p at 60 fps too. It is a safe, high-quality choice — just expect files about 25% bigger than at 8 Mbps.
How do I calculate video bitrate from file size?
Use this formula: Bitrate (Mbps) = (File size in MB × 8) ÷ Duration in seconds. Then subtract your audio bitrate to get the video bitrate alone. Or skip the maths — Mode B of the calculator above does it instantly.
What bitrate do I need for 4K video?
35–45 Mbps at 30 fps and 53–68 Mbps at 60 fps for H.264 SDR uploads. In H.265, roughly half of that gives the same visible quality.
What is the difference between bitrate and file size?
Bitrate is speed — how much data each second holds. File size is the total — bitrate multiplied by duration. A 2-minute video and a 20-minute video can share the same bitrate but have completely different file sizes.
Does a higher bitrate always mean better quality?
Only up to the sweet spot for your resolution and codec. After that point, extra bitrate mostly adds file size, not visible detail. A correct 8 Mbps 1080p export will look better than a wasteful 40 Mbps one once a platform re-encodes both.
What audio bitrate should I use?
96 kbps for voice only, 128 kbps for most social media videos, 192 kbps for good all-round quality, and 256–384 kbps for music-focused YouTube uploads.
What bitrate is best for TikTok and Reels?
Export vertical 1080×1920 video at 30 fps with 6–10 Mbps in H.264. Both platforms re-encode uploads, so going much higher only makes your upload slower, not sharper.
How many MB is a 1-minute video?
At 1080p and 8 Mbps, about 59 MB per minute. At 720p and 5 Mbps, about 37 MB per minute. At 4K and 40 Mbps, about 293 MB per minute. The calculator above gives the exact figure for your own settings.
What is the difference between CBR and VBR?
CBR keeps one fixed bitrate for the whole video — predictable size, ideal for live streaming. VBR changes the bitrate with the scene — better quality at the same average size, ideal for exported files and uploads.
Why does my video look blurry after uploading to YouTube?
Most often, the export bitrate was below YouTube's recommended level, so YouTube's re-encode had too little detail to work with. Re-export at or slightly above the chart values on this page, from your original project file, and the difference is usually dramatic.