Technology & IT Calculators
Work through common IT calculations for data sizes, bandwidth, download time, storage, binary and hexadecimal values, timestamps, resolution and networks. These tools can help students, support teams and technical users check quantities or troubleshoot routine tasks. Confirm units and system conventions before applying results to a live environment.
Data & Storage
10 toolsData Storage Converter
Convert between bytes, KB, MB, GB, TB and more.
File Size Calculator
Calculate and compare file sizes across common data units.
Storage Capacity Calculator
Estimate storage capacity from drives, files and available space.
Data Usage Calculator
Estimate data usage from your daily or monthly activity.
Data Transfer Calculator
Calculate transferred data from speed and transfer time.
Data Rate Calculator
Calculate data rate from transferred data and time.
Bandwidth Calculator
Calculate required bandwidth for data transfer.
Bandwidth Usage Calculator
Estimate bandwidth consumption over time.
Download Time Calculator
Estimate download time from file size and download speed.
Upload Time Calculator
Estimate upload time from file size and upload speed.
Internet & Networking
10 toolsInternet Speed Calculator
Calculate internet transfer speed from data and time.
Network Speed Calculator
Calculate network speed and transfer performance.
Ping Latency Calculator
Calculate latency and round-trip network timing.
Network Bandwidth Calculator
Estimate bandwidth requirements for network traffic.
IP Subnet Calculator
Calculate IPv4 subnet details from an address and prefix.
IPv4 Subnet Calculator
Calculate network, broadcast, hosts and subnet information.
CIDR Calculator
Calculate IPv4 network details from CIDR notation.
IPv4 Address Calculator
Analyze an IPv4 address and its binary representation.
Host Count Calculator
Calculate usable IPv4 hosts from a subnet prefix.
Network Range Calculator
Calculate the usable address range for an IPv4 subnet.
Computing & Number Systems
10 toolsBinary Calculator
Perform calculations using binary numbers.
Decimal to Binary Calculator
Convert decimal numbers to binary.
Binary to Decimal Calculator
Convert binary numbers to decimal.
Hexadecimal Calculator
Perform calculations using hexadecimal numbers.
Decimal to Hexadecimal Calculator
Convert decimal numbers to hexadecimal.
Hexadecimal to Decimal Calculator
Convert hexadecimal numbers to decimal.
Octal Calculator
Convert and calculate using octal numbers.
Base Converter
Convert numbers between common number bases.
Bitwise Calculator
Calculate AND, OR, XOR, NOT and bit-shift operations.
Byte Calculator
Calculate bits, bytes and common digital storage units.
Files, Images & Media
10 toolsFile Transfer Time Calculator
Estimate transfer time from file size and transfer rate.
Image File Size Calculator
Estimate image file size from resolution, color depth and compression.
Image Resolution Calculator
Calculate image resolution and pixel dimensions.
Aspect Ratio Calculator
Calculate image or video dimensions from an aspect ratio.
DPI Calculator
Calculate dots per inch from dimensions and print size.
PPI Calculator
Calculate pixels per inch from screen resolution and size.
Pixel Calculator
Calculate total pixels from image or display dimensions.
Video File Size Calculator
Estimate video file size from bitrate and duration.
Video Bitrate Calculator
Calculate video bitrate from file size and duration.
Audio File Size Calculator
Estimate audio file size from bitrate and duration.
Digital Time & Programming
6 toolsUnix Timestamp Converter
Convert between Unix timestamps and UTC date/time.
Timestamp Calculator
Calculate and compare Unix timestamps.
Epoch Time Calculator
Convert epoch time values to readable UTC dates.
Date Difference Calculator
Calculate the difference between two dates.
Seconds to Time Calculator
Convert seconds into hours, minutes and seconds.
Time to Seconds Calculator
Convert hours, minutes and seconds into total seconds.
Digital & Developer Tools
4 toolsPassword Entropy Calculator
Estimate theoretical password entropy from length and character sets.
Hash Rate Calculator
Calculate total hashes processed from hash rate and time.
CPU Utilization Calculator
Calculate CPU utilization from used and total processing time.
Uptime Calculator
Calculate uptime percentage from uptime and total time.
About these Technology & IT calculators
Use these free tools for everyday technology and computing tasks, including data conversion, storage and transfer calculations, internet and network calculations, number systems, image and media calculations, timestamps and basic developer utilities. Results are estimates where real-world network, compression, hardware or service conditions can vary.