This calculator helps you estimate filesize, using bandwidth and time as inputs. Use it to estimate video file size, disk size, network backup capacity...
1 day * 5 GB/mo
1 day
5 GB/mo
= 1 days * 206.68 B/s
1 days
206.68 B/s
= 17.86 MB
17.86 MB
Compare 17.86 MB to standard capacities from:Hard disk • Tape drive • Optical drive •
Samsung 850 EVO 120GB SSD = 6720 files of 17.86 MB • Intel 530 240GB SSD = 13440 files of 17.86 MB • WD Blue 500GB drive = 28000 files of 17.86 MB • WD Blue 1TB drive = 56000 files of 17.86 MB • Samsung 840 EVO 1TB SSD = 56000 files of 17.86 MB • WD Purple 2TB drive = 112000 files of 17.86 MB • WD Red Pro 3TB drive = 168000 files of 17.86 MB • WD Red 4TB drive = 224000 files of 17.86 MB • WD Green 6TB drive = 336000 files of 17.86 MB •
Multiply bandwidth by time: Size = Bandwidth × Time. Convert units first: 100 Mbps × 60 seconds = 6000 Megabits = 750 MB. Remember: 8 bits = 1 byte, so divide bits by 8 to get bytes.
Depends on bitrate: YouTube HD (5 Mbps) = 2.25 GB/hour. Netflix HD (5.8 Mbps) = 2.6 GB/hour. 4K streaming (15-25 Mbps) = 7-11 GB/hour. Blu-ray quality (40 Mbps) = 18 GB/hour.
MB (megabyte) = 1,000,000 bytes (decimal, SI standard). MiB (mebibyte) = 1,048,576 bytes (binary, 2^20). Hard drives use MB; Windows often shows MiB. A "1 TB" drive shows as 931 GiB in Windows.
At Netflix HD quality (2.6 GB/hr): 1TB = 385 hours. At 4K (10 GB/hr): 1TB = 100 hours. At Blu-ray quality (18 GB/hr): 1TB = 55 hours. Compressed formats like H.265 can nearly double these numbers.