Video Storage Calculator
Calculate storage needs from video resolution, frame rate, codec, and recording duration. Enter values for instant results with step-by-step formulas.
Calculator
Adjust values & calculateRecording Time by Card Size
Formula
Storage in megabytes equals the bitrate in megabits per second multiplied by duration in seconds, divided by 8 to convert bits to bytes. Bitrate depends on resolution, frame rate, bit depth, and codec compression ratio.
Last reviewed: December 2025
Worked Examples
Example 1: Wedding Videography Full Day
Example 2: Film Production RAW 4K
Background & Theory
The Video Storage Calculator applies the following established principles and formulas. Computers represent all information using binary, a base-2 number system consisting solely of the digits 0 and 1, each called a bit. Because long binary strings are unwieldy, programmers routinely use octal (base 8) and hexadecimal (base 16) as compact shorthand. Converting between bases follows a consistent algorithm: divide the source number repeatedly by the target base, collecting remainders in reverse order. Hexadecimal digits A through F represent the values 10 through 15, allowing a single character to encode four binary bits, making it the preferred notation for memory addresses, color codes, and bytecode. Bitwise operations manipulate individual bits within integers. AND produces a 1 only when both input bits are 1, making it useful for masking. OR produces a 1 when either bit is 1 and is used for combining flags. XOR flips bits that differ, enabling simple toggle logic and efficient swap algorithms. NOT inverts every bit (one's complement), while left and right shifts multiply or divide by powers of two in constant time. Data storage units ascend in binary multiples of 1024: 8 bits form one byte, 1024 bytes form one kibibyte (KiB), 1024 KiB form one mebibyte (MiB), and so forth. Hard-drive manufacturers historically use decimal prefixes (1 KB = 1000 bytes), creating the persistent confusion between binary and decimal interpretations of the same label. The IEC standardized the binary prefixes KiB, MiB, GiB, and TiB in 1998 to resolve this ambiguity. Network bandwidth is measured in bits per second (bps), most commonly megabits per second (Mbps) or gigabits per second (Gbps). A 100 Mbps connection transfers 100 million bits every second, equating to roughly 12.5 megabytes per second. IP subnet masks define network boundaries; CIDR notation appends a prefix length (e.g., /24) to an address, indicating how many leading bits are fixed. A /24 subnet contains 256 addresses with 254 usable hosts. Algorithm efficiency is described using Big-O notation, which characterises the worst-case growth of time or space relative to input size. O(1) is constant, O(log n) is logarithmic (binary search), O(n) is linear, and O(n²) is quadratic. Cryptographic hash functions like SHA-256 produce a fixed 256-bit (32-byte) digest regardless of input length. File compression algorithms exploit statistical redundancy to reduce storage footprint, and compression ratio equals the original file size divided by the compressed size.
History
The history behind the Video Storage Calculator traces back through the following developments. The conceptual foundation of modern computing traces back to Charles Babbage, whose Analytical Engine design of 1837 introduced the idea of a general-purpose mechanical computer with separate storage and processing units, including what he called the Store and the Mill. Ada Lovelace wrote what many consider the first algorithm intended for machine execution while annotating a translation of Luigi Menabrea's account of Babbage's work, also recognising the machine's potential to manipulate symbols beyond mere numbers. George Boole published "The Laws of Thought" in 1854, formalising a two-valued algebra of logic that would later map perfectly to electrical circuits. It remained largely a mathematical curiosity until Claude Shannon's landmark 1937 master's thesis demonstrated that Boolean algebra could describe switching circuits, laying the theoretical groundwork for all digital electronics. Shannon's 1948 paper "A Mathematical Theory of Communication" defined the bit as the fundamental unit of information and established information theory as a rigorous discipline. The same year, the transistor was invented at Bell Labs by Bardeen, Brattain, and Shockley, eventually replacing vacuum tubes and enabling miniaturisation at scale. ENIAC, completed in 1945, was one of the first general-purpose electronic computers, occupying 1800 square feet and consuming 150 kilowatts of power while performing roughly 5000 additions per second. The ASCII standard was ratified in 1963, assigning 7-bit codes to 128 characters and enabling interoperability between computers from different manufacturers. Through the 1970s, the microprocessor consolidated an entire CPU onto a single chip; Intel's 4004 in 1971 marked the beginning of this trend. The Apple II launched in 1977 and the IBM PC in 1981 brought computing to homes and offices, triggering a mass-market software industry. Tim Berners-Lee proposed the World Wide Web in 1989 and launched the first website in 1991 at CERN, transforming the internet from an academic and military network into a global information infrastructure. Mobile computing accelerated through the 2000s with smartphones integrating powerful processors, wireless networking, and GPS into pocket-sized devices, extending computation into every facet of daily life and cementing TCP/IP as the universal communications fabric.
Frequently Asked Questions
Formula
Storage = (Bitrate x Duration) / 8
Storage in megabytes equals the bitrate in megabits per second multiplied by duration in seconds, divided by 8 to convert bits to bytes. Bitrate depends on resolution, frame rate, bit depth, and codec compression ratio.
Worked Examples
Example 1: Wedding Videography Full Day
Problem: An 8-hour wedding shoot at 4K 30fps using H.264 codec. How much storage is needed?
Solution: Resolution: 3840 x 2160 = 8,294,400 pixels/frame\nBase bitrate = (8,294,400 x 30 x 8) / (1,000,000 x 50) = 39.8 Mbps\nH.264 ratio = 1.0x, adjusted = 39.8 Mbps\nData rate = 39.8 / 8 = 4.97 MB/s\nPer minute = 298.5 MB\nPer hour = 17.5 GB\n8 hours = 140.0 GB\nRecommended: 2 x 128 GB cards + backup drive
Result: ~140 GB for 8 hours | ~17.5 GB/hour | Need V30+ SD cards (5 MB/s write)
Example 2: Film Production RAW 4K
Problem: A 2-hour shoot at 4K DCI 24fps in RAW format at 12-bit depth. Calculate storage needs.
Solution: Resolution: 4096 x 2160 = 8,847,360 pixels/frame\nBase bitrate = (8,847,360 x 24 x 12) / (1,000,000 x 50) = 50.9 Mbps\nRAW ratio = 40x, adjusted = 2,036 Mbps\nData rate = 254.5 MB/s\nPer minute = 15,270 MB = 14.9 GB\n2 hours = 1,788 GB = 1.75 TB\n12-bit multiplier = 1.5x applied to base\nRequired write speed: 254.5 MB/s (CFexpress Type B or SSD)
Result: ~1.75 TB for 2 hours | ~14.9 GB/min | CFexpress B or external SSD required
Frequently Asked Questions
How much storage does 4K video require compared to 1080p?
4K UHD video (3840 x 2160) contains four times as many pixels as 1080p Full HD (1920 x 1080), which directly translates to approximately 4 times the storage requirement at equivalent codec settings and bitrates. A typical 4K H.264 recording at 30 fps uses about 400 to 600 Mbps, consuming roughly 3 to 4.5 GB per minute. The same content at 1080p uses about 100 to 150 Mbps, consuming 750 MB to 1.1 GB per minute. In practice, the ratio may vary depending on codec efficiency and content complexity. Modern codecs like H.265/HEVC can reduce 4K file sizes by up to 50 percent compared to H.264 while maintaining equivalent visual quality, bringing storage requirements closer to what H.264 1080p footage requires.
What is the difference between H.264, H.265, and ProRes codecs for storage?
H.264 (AVC) is the most widely used delivery codec, offering good quality at moderate file sizes with typical bitrates of 20 to 100 Mbps for consumer cameras. H.265 (HEVC) achieves the same visual quality as H.264 at roughly half the bitrate, making it 50 percent more storage-efficient but requiring significantly more processing power for encoding and decoding. ProRes is an Apple-developed intermediate codec designed for post-production editing rather than delivery. ProRes 422 uses bitrates of 150 to 220 Mbps for 4K, producing files 5 to 10 times larger than H.264 but with far less compression artifacting and faster editing performance. ProRes 422 HQ pushes this further with higher quality at proportionally larger file sizes. RAW video formats can be 20 to 40 times larger than H.264.
How does frame rate affect video storage requirements?
Frame rate has a directly proportional relationship with storage: doubling the frame rate doubles the file size because twice as many frames are captured per second. Standard 24 fps footage requires about 80 percent of the storage of 30 fps content. Recording at 60 fps doubles the storage compared to 30 fps, and high-speed recording at 120 fps or 240 fps for slow motion multiplies storage requirements by 4x or 8x respectively. This is why most cameras recording high frame rates either reduce resolution or use more aggressive compression to manage file sizes. A 4K camera shooting at 120 fps would require approximately 12 to 18 GB per minute in H.264, making high-speed 4K capture impractical without fast, large-capacity storage media.
What recording media do I need for different video formats?
The recording medium must provide sustained write speeds that exceed the video bitrate to prevent dropped frames. SD cards are suitable for H.264 1080p up to about 100 Mbps, requiring at least a V30 (30 MB/s) speed class card. For 4K H.264, CFexpress Type A or high-speed SD UHS-II cards (V60 or V90) are necessary. ProRes 422 at 4K requires write speeds of 50 MB/s or more, necessitating CFexpress Type B, fast SSDs, or dedicated recording drives. RAW video at 4K or above can demand write speeds of 300 to 500 MB/s, requiring CFexpress Type B cards or external SSD recorders. NVMe SSDs connected via USB 3.2 or Thunderbolt provide the highest sustained write speeds for demanding formats, while network-attached storage is used for multi-camera studio productions.
How do I estimate storage for a full day of shooting?
Professional video productions typically shoot at a ratio of 10:1 to 40:1, meaning 10 to 40 minutes of footage for every minute of final edited content. For a documentary shooting 8 hours at 4K ProRes 422 at 30 fps, expect approximately 200 GB per hour, totaling 1.6 TB for a full day. A narrative film production might shoot 4 to 6 hours of footage per day in similar formats, requiring 800 GB to 1.2 TB. Corporate event coverage at 4K H.264 uses roughly 15 to 25 GB per hour, making an 8-hour day about 120 to 200 GB. Always bring 1.5 to 2 times the estimated storage to account for unexpected extended shooting, multiple takes, and the inability to review and delete footage during active production. Backing up footage to a second drive is essential.
What is the most cost-effective storage solution for video production?
The most cost-effective approach uses a tiered storage strategy. For on-set capture, use the minimum-spec cards your camera requires and offload frequently to portable SSDs. For editing, use fast NVMe drives (2 to 4 TB) that provide the throughput needed for real-time playback of high-bitrate footage. For project storage, use enterprise-grade spinning hard drives (8 to 18 TB each) in a RAID configuration that provides both speed and redundancy. For long-term archival, LTO tape remains the cheapest per-terabyte option at approximately two dollars per TB, though the drive hardware is expensive. Cloud storage is convenient but ongoing costs add up quickly: storing 50 TB in cloud services costs thousands of dollars annually. A practical rule is to budget 2 to 5 percent of total production costs for storage hardware and backup media.
References
Reviewed by Daniel Agrici, Founder & Lead Developer · Editorial policy