Tech & Networking Calculators
Split an IPv4 network into subnets, size a RAID array, work out video and audio file sizes from the bitrate, turn an uptime target into minutes of downtime, measure password strength in bits and do hexadecimal and bitwise arithmetic.
9 calculators · A–Z of all calculators
- Subnet CalculatorIPv4 network, broadcast and host range from an address and prefix, plus subnet splits.
- RAID CalculatorUsable capacity and drive failures survived for RAID 0, 1, 5, 6 and 10.
- File Size & Bitrate CalculatorVideo and audio file size from bitrate and length, or the bitrate for a target size.
- Uptime CalculatorAvailability nines to downtime, plus series and parallel availability and error budget.
- Password Entropy CalculatorBits of entropy of a random password or passphrase, and the time to guess it.
- Hex CalculatorHex, decimal, binary and octal arithmetic with AND, OR, XOR, shifts and flags.
- Morse Code TranslatorText to Morse code and back with the ITU table, plus transmit time at any speed in words per minute.
- Caesar Cipher CalculatorEncode and decode the Caesar cipher, ROT13 and Vigenère, or try all 25 shifts.
- Check Digit CalculatorValidate or find the check digit of Luhn, ISBN-10, ISBN-13, UPC, EAN and IBAN numbers.