Free online toolkit
Internet and network calculators
for clear, practical answers.
Calculate transfer time, convert internet speed, estimate data usage, share bandwidth, and plan IPv4 subnets. Every tool is free, private, and runs directly in your browser.
Time tools
Transfer time calculators
Estimate download, upload, and file transfer duration from data size and sustained speed.
Time
Download Time
Estimate a file or game download from its size and a realistic sustained speed, then compare the ideal result with common real-world delays.Open calculator ↗Time
Upload Time
Plan how long a cloud backup, video upload, photo library, or work file transfer should take at your sustained upload speed.Open calculator ↗Time
File Transfer Time
Plan local and remote transfers across Ethernet, Wi-Fi, USB, NAS, or storage by comparing file size with a realistic sustained transfer rate.Open calculator ↗Speed tools
Internet speed converters
Convert between Mbps, MB/s, and hourly data rates without confusing bits and bytes.
Speed
Mbps to MB/s
Start with an internet or network rate in Mbps and get its file-transfer rate in MB/s using the correct divide-by-eight conversion.Open calculator ↗Speed
Mbps to Gbps
Convert any Mbps value into Gbps and compare common broadband, Wi-Fi, and Ethernet rates without confusing gigabits with gigabytes.Open calculator ↗Speed
MB/s to Mbps
Start with the MB/s shown by a file app and get the equivalent network rate in Mbps using the correct multiply-by-eight conversion.Open calculator ↗Speed
Mbps to GB/hour
See how many decimal gigabytes a constant network rate can move in one hour, then use the result for transfer and data-cap planning.Open calculator ↗Data tools
Data usage calculators
Estimate monthly internet and streaming consumption before choosing a plan or reaching a data cap.
Data
Data Usage
Build a practical monthly estimate from everyday online activities before choosing an internet plan or checking whether a data allowance is enough.Open calculator ↗Data
Streaming Data
Estimate how much data video streaming may consume at common resolutions and viewing schedules, then compare the result with a monthly allowance.Open calculator ↗Network tools
Network planning tools
Share bandwidth fairly and calculate IPv4 subnet details for practical network decisions.
Network
Bandwidth Sharing
Estimate an equal per-device bandwidth share while keeping spare capacity for overhead, bursts, and other traffic on a shared connection.Open calculator ↗Network
IPv4 Subnet
Calculate an IPv4 network and use the /24 to /31 cheat sheet for CIDR masks, wildcard masks, address counts, usable hosts, and broadcast ranges.Open calculator ↗Learn the method
Want the numbers explained?
Our practical guides cover units, assumptions, real-world speed limits, data use, and subnet planning.