Recording Time Calculator

How much footage fits on a card — and at what data rate — for 57 cameras from ARRI, RED, Sony, Canon, Blackmagic, DJI and GoPro, at every frame rate and card size.

Free · no sign-up · works in your browser

How to use it

  1. Pick the camera, then the recording format — resolution and codec.
  2. Pick the frame rate and the card size. The time on that card, and the data rate, update as you go.
  3. On a computer or an iPad, the table beside the result shows this format on every card at every frame rate — click any cell to jump to it.

How it’s calculated

minutes = card size (GB) × 8,000 ÷ data rate (Mb/s) ÷ 60

Data rates come from each maker’s published figures (best effort). RAW and ProRes data rates scale with the frame rate from their 24 fps figure; fixed-bitrate codecs — most consumer H.265 — record at the same rate at any frame rate. Cards format to a little less than the size on the label, so treat the numbers as planning figures.

Recording time at 24 fps

Each camera’s first format in the calculator. — means that media is not made in that size.
Camera · formatData rateMedia512GB1TB2TB
ARRI Alexa 35
4.6K 3:2 OG · ARRIRAW
2600 Mb/s
325 MB/s
Codex Compact Drive—53 min1h 45m
ARRI Alexa Mini LF
4.5K LF OG · ARRIRAW
2900 Mb/s
363 MB/s
Codex Compact Drive—47 min1h 34m
RED V-Raptor / XL 8K VV
8K VV · REDCODE HQ
2760 Mb/s
345 MB/s
CFexpress Type B25 min49 min1h 39m
Sony Venice 2 8.6K
8.6K 3:2 · X-OCN XT
6600 Mb/s
825 MB/s
AXS Card10 min21 min41 min
Sony Burano
8.6K 3:2 · X-OCN LT
3240 Mb/s
405 MB/s
CFexpress Type B21 min42 min1h 24m
Sony FX6
4K DCI · XAVC-I
240 Mb/s
30 MB/s
CFexpress Type A4h 44m9h 29m18h 58m
Canon C80
6K FF · Cinema RAW Light HQ
2600 Mb/s
325 MB/s
SD UHS-II26 min53 min1h 45m
Blackmagic PYXIS 6K
6K 3:2 OG · BRAW 3:1
2368 Mb/s
296 MB/s
CFexpress Type B29 min58 min1h 55m
DJI Ronin 4D 8K
8K FF · ProRes RAW
4160 Mb/s
520 MB/s
DJI PROSSD16 min33 min1h 06m

Every camera in the calculator

57 cameras and 246 recording formats:

ARRI — Alexa 35, Alexa 65, Alexa LF, Alexa Mini, Alexa Mini LF, Amira
Blackmagic — Cinema Camera 6K, PYXIS 12K, PYXIS 6K, Pocket Cinema Camera 4K, Pocket Cinema Camera 6K Pro / G2, URSA Broadcast G2, URSA Cine 12K LF, URSA Cine 17K 65, URSA Mini Pro 12K, URSA Mini Pro 4.6K G2
Canon — 5D Mark III, C200, C300 (original), C300 Mark II, C300 Mark III, C500 (original), C500 Mark II, C70, C700, C80, R5 / R5 C, R6 Mark II
DJI — Mavic 2 Pro / Zoom, Mavic 3 / 3 Classic, Mavic 3 Cine, Mavic 3 Pro, Mavic 3 Pro Cine, Mavic 4 Pro, Mavic Pro / Platinum, Osmo Action 5 Pro, Osmo Action 6, Osmo Pocket 3, Ronin 4D 6K, Ronin 4D 8K
GoPro — Hero 10, Hero 13 / 12 / 11, Mission 1, Mission 1 Pro
RED — Komodo 6K, Komodo-X 6K, V-Raptor / XL 8K VV
Sony — A1, A7 IV, A7S III, Burano, FX3, FX30, FX6, FX9, Venice / Venice 2 6K, Venice 2 8.6K

Questions

Does frame rate change the recording time?

For RAW and ProRes, yes — twice the frames is twice the data, so 48 fps fills a card in half the time 24 fps does. Fixed-bitrate codecs record at the same data rate whatever the frame rate.

What’s the difference between Mb/s and MB/s?

Eight bits make a byte: 1,000 Mb/s (megabits) is 125 MB/s (megabytes). Cameras quote data rates in megabits; cards and drives quote speed in megabytes.

Why does my card hold a little less?

A card formats to slightly less than its label, and some cameras reserve space for their own files. The calculator uses the size on the label.

Where do the data rates come from?

From each camera maker’s published figures. If a number looks wrong for your camera, write to help@camplot.studio.