6 calculators in this category
- Data Transfer Time CalculatorDecimal SI and IEC 80000-13 binary prefixesEnter how much data you have to move and how fast the link is, and this calculator returns the elapsed time in days, hours…
- Mbps to MB/s Speed Converter CalculatorIEC 80000-13 (binary prefixes), SI decimal prefixesYour ISP sells megabits per second. Your browser reports megabytes per second. They differ by a factor of eight, which is why a…
- Network Bandwidth Requirement CalculatorITU-T G.711 / G.729 payload rates; IETF RFC 3550 (RTP)A circuit is sized for the busiest minute of the busiest day, not for the average. This calculator builds that peak from the…
- VoIP Bandwidth Calculator (Codec & Packet Overhead)ITU-T G.711 / G.729 with RFC 3550 RTPA G.711 call is not 64 kbps on the wire. The codec produces 64 kbps of speech, and then every 20 ms packet carries 40 bytes of…
- Bandwidth-Delay Product CalculatorRFC 7323 TCP window scalingThe bandwidth-delay product is how much data a path holds while it is in transit — the bits that have left the sender but not…
- MTU, MSS & Packet Overhead CalculatorRFC 791 / RFC 8200 / RFC 879Every layer of encapsulation steals bytes from the packet that carries your data. This calculator takes the MTU of the…
Which one do you need?
- Data Transfer Time Calculator
- Work out how long a file, backup or migration takes over any link speed. Handles GB vs GiB, protocol efficiency and parallel streams, with a full speed table.
- Mbps to MB/s Speed Converter Calculator
- Convert Mbps, Gbps, kbps, MB/s and MiB/s in one step, then see the data volume per hour and day and the download time for a file of any size.
- Network Bandwidth Requirement Calculator
- Size an internet or WAN circuit from user counts, per-application bitrates, concurrency, protocol overhead and a target utilisation, with upstream too.
- VoIP Bandwidth Calculator (Codec & Packet Overhead)
- Calculate VoIP bandwidth per call and for a whole trunk from codec, packetisation interval and layer 2 headers, with packet rates and header overhead.
- Bandwidth-Delay Product Calculator
- Work out the bits in flight on a path, the TCP socket buffer needed to fill it, the window scale factor required, and what your current window achieves.
- MTU, MSS & Packet Overhead Calculator
- Find the MSS clamp value for any tunnel stack, count IP fragments for a given payload, and see how much of your line rate the headers actually consume.