This calculator helps you estimate filesize, using bandwidth and time as inputs. Use it to estimate video file size, disk size, network backup capacity...
2.671 days * 13 MB/s
2.671 days
13 MB/s
= 2.671 days * 13 MB/s
= 3 TB
3 TB
Compare 3 TB to standard capacities from:Hard disk • Tape drive • Optical drive •
Samsung 850 EVO 120GB SSD x 25 units = 3 TB • Intel 530 240GB SSD x 12.5 units = 3 TB • WD Blue 500GB drive x 6 units = 3 TB • WD Blue 1TB drive x 3 units = 3 TB • Samsung 840 EVO 1TB SSD x 3 units = 3 TB • WD Purple 2TB drive x 1.5 units = 3 TB • WD Red Pro 3TB drive x 1 units = 3 TB • WD Red 4TB drive = 1.3 files of 3 TB • WD Green 6TB drive = 2 files of 3 TB •
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.