How Much 4K Video Can 512GB Hold?

Looking to record 4K video? See how much 4K video fits on a 512GB memory card at various video bitrates. Calculate how much 4K footage you can get with this interactive chart and calculator.

SD Memory Cards. Photo by David Coleman - havecamerawilltravel.com
Text & Photos By David Coleman
Last Revised & Updated:

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512GB memory cards aren’t the largest memory cards available these days–some formats have 1TB and even 2TB sizes–but it’s still a lot of storage space. So you might be wondering whether it’s worth spending a bit more to get the next step up from a 256GB card.

File Size & Video Bitrate

The amount of storage space a video file takes up is determined by what is known as video bitrate. It’s also sometimes known as data rate.

A higher bitrate uses more data to encode each second of video, resulting in less compression, higher potential image quality, and larger file size. Conversely, a lower bitrate uses less data to encode each second of video, resulting in more compression, lower image quality, and smaller file size.

The encoding bitrate is determined by your camera’s capabilities and by the settings you use. High-end cameras can encode 4K video at 400 Mbps or more. Cameras such as action cameras and drones can record 4K video in the 100 Mbps to 200 Mbps range. Lower-level or older cameras, such as early-generation 4K cameras, recorded at closer to 60 Mbps. YouTube recommends a bitrate of between 35 and 68 for 4K videos you upload. 1

Mbps and Mb/s are different ways of writing the same thing. Both refer to megabits per second. They both use a lowercase “b.” Video bitrate is conventionally measured in Mbps.

If the “B” is capitalized, as in MB/s or MBps, it refers to megabytes per second. There are 8 bits in a byte, so there are 8 megabits in a megabyte. The speed of memory cards is conventionally measured in MB/s.

So there’s a wide range of bitrates that can be used to encode 4K video. And that, in turn, means there’s a wide range in answering how much 4K video can fit on a 512GB memory card.

For example, on 512GB, you can fit over 33 hours of 4K footage at a low bitrate of 35 Mbps or nearly 3 hours of 4K footage recorded on a high-end camera at 400 Mbps. So it really depends on the capabilities of your camera and which settings you’re shooting with.

Here’s a table that shows how much 4K video you can fit in 512GB at various bitrates.

4K Video on a 512GB Memory Card Chart

Video Bitrate (Mb/s)Duration
3533 hours and 17 minutes
4525 hours and 53 minutes
5023 hours and 18 minutes
6019 hours and 25 minutes
7016 hours and 39 minutes
7814 hours and 56 minutes
8014 hours and 34 minutes
9012 hours and 57 minutes
10011 hours and 39 minutes
1209 hours and 43 minutes
1259 hours and 19 minutes
1507 hours and 46 minutes
1756 hours and 39 minutes
2005 hours and 50 minutes
2305 hours and 4 minutes
2504 hours and 40 minutes
3003 hours and 53 minutes
3203 hours and 38 minutes
4002 hours and 55 minutes

4K Video on 512GB Memory Card Calculator

Here’s another option if you need a bitrate that’s not in the chart above.



On a 512GB memory card, you can fit around
0 minutes of 4K video footage at
a bitrate of 100 Mb/s.
This corresponds to about 12.5 megabytes per second of footage, or 750 megabytes per minute.

Does Framerate Affect 4K Video File Size?

Sort of.

The storage space required for a video file is not directly affected by its framerate or resolution. Even if a 4K30 video is encoded at 100 Mbps and a 4K60 video is encoded at the same bit rate, the amount of storage space they occupy will be the same. Similarly, a 1080p120 file encoded at 100 Mbps will also occupy the same amount of storage space.

However, these factors do play indirect roles in the amount of storage space required. Higher framerates and resolutions contain more visual information to encode, and higher bitrates can result in better image quality for videos recorded at high framerates. Camera manufacturers often increase the bitrate when the framerate is raised to maintain maximum detail and picture quality. For example, a camera may use a higher bitrate for 1080p240 video than for 1080p30, but this is because of the manufacturer’s decision to record the video at a higher bitrate for maximum detail and picture quality, rather than the framerate directly consuming more data.

The relationship between framerate and storage size is more direct with high-end codecs such as Apple ProRes and Cineform, where the bitrate, or data rate, is designed to increase along with increasing framerate. That’s where it’s easy to get data rates up over 1900 Mbps, and it’s to do with a different approach to encoding. (You can read a much more technical discussion of how framerate increases data rate in the Apple ProRes codecs in this Apple white paper.) It’s even more direct with RAW capture.

With codecs such as H.264 or HEVC (H.265), which are designed as much for sharing video as for recording, there’s more emphasis on the target bitrate and keeping filesize small.

512GB Memory Cards

Here are some fast 512GB memory cards in various form factors.

512GB microSD Cards

Lexar Professional Silver 1066x V30 512GB microSDXC
  • Type: microSDXC
  • Video Speed Class: V30
  • UHS Speed Class: UHS-I
  • Rated read speed: 160 MB/s
  • Rated write speed: 120 MB/s
Samsung Pro Plus V30 512GB microSDXC
  • Type: microSDXC
  • Video Speed Class: V30
  • UHS Speed Class: UHS-I
  • Rated read speed: 160 MB/s
  • Rated write speed: 120 MB/s
SanDisk Extreme V30 512GB microSDXC
  • Type: microSDXC
  • Video Speed Class: V30
  • UHS Speed Class: UHS-I
  • Rated read speed: 190 MB/s
  • Rated write speed: 130 MB/s

512GB SD Cards

ProGrade Digital V90 UHS-II 512GB SDXC
  • Type: SDXC
  • Video Speed Class: V90
  • UHS Speed Class: UHS-II
  • Rated read speed: 300
  • Rated write speed: 250
SanDisk Extreme Pro 512GB SDXC
  • Type: SDXC
  • Video Speed Class: V30
  • UHS Speed Class: UHS-I
  • Rated read speed: 200
  • Rated write speed: 140
Lexar Professional 1066x V30 512GB SDXC
  • Type: SDXC
  • Video Speed Class: V30
  • UHS Speed Class: UHS-I
  • Rated read speed: 160
  • Rated write speed: 120
Kingston Canvas Go! Plus V30 512GB SDXC
  • Type: SDXC
  • Video Speed Class: V30
  • UHS Speed Class: UHS-I
  • Rated read speed: 170
  • Rated write speed: 90

512GB CFexpress Type B Cards

SanDisk Extreme Pro 512GB CFexpress Type B
  • Type: CFexpress Type B
  • Rated read speed: 1700
  • Rated read speed: 1400
Lexar Professional 512GB CFexpress Type B
  • Type: CFexpress Type B
  • Rated read speed: 1750
  • Rated read speed: 1000
Delkin Devices Power 512GB CFexpress Type B
  • Type: CFexpress Type B
  • Rated read speed: 1730
  • Rated read speed: 1540
Prograde Digital 512GB CFexpress Type B
  • Type: CFexpress Type B
  • Rated read speed: 1700
  • Rated read speed: 800

Memory Card Tools

Here are a few other related tools I’ve put together that can be useful when working with memory cards and data rates.

Converting Mbps to MB/s & X Speed Rating to MB/s

Another related and common calculation that often needs to be done when working with memory cards is converting the convention for measuring video bitrate (Mbps, Mb/s, or megabits per second) to the convention for measuring the speed of memory cards (MBps, MB/s, or megabytes per second).

So I’ve put together a simple calculator for that separately. You can find it here:

Memory Card Size Calculators

If you’re trying to figure out what size memory card to buy, it can be useful to know how much video footage from the camera you can fit on a card. Here are a few tools that can be useful for that:

Working with Memory Cards

Here are some related posts for making sense of memory cards and working with them.

  1. More specifically, YouTube recommends a bitrate of 35-45 Mbps for 4K SDR video for footage recorded at framerates of 24, 25, or 30 fps or from 53-68 Mbps for footage recorded at 48, 50, or 60 fps. For 4K HDR video, they recommend 44-56 Mbps for standard framerates (24, 25, 30) or 66-85 Mbps for high framerates (48, 50, 60).[]

Images and product information from Amazon PA-API were last updated on 2023-12-01 at 13:27. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon Site at the time of purchase will apply to the purchase of this product.

Profile photo of David Coleman | Have Camera Will Travel | Washington DC-based Professional Photographer

Text & Photos by David Coleman

I'm a professional photographer based in Washington DC. Seven continents, up mountains, underwater, and a bunch of places in between. I've been shooting for 30+ years, and my my photos and time-lapse videos have appeared in a bunch of different publications from major newspapers to magazines and books, billboards, TV shows, professional sports stadiums, museums, and even massive architectural scrims covering world-famous buildings while they're being renovated. You can see some of my travel photography here and here.

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