Internet & Networks
Convert speeds, estimate transfer time, plan bandwidth and inspect IPv4 CIDR ranges.
⌨ Technology & Computing Calculator Category
Technology & Computing Calculators
Calculate network transfer, bandwidth, data use, IPv4 subnets, screen dimensions, media storage, battery life and backup power with 16 clear tools.
Showing all 16 technology and computing calculators.
Internet Speed Converter
Convert internet speeds between Kbps, Mbps, Gbps and kilobytes, megabytes or gigabytes per second.
Download Time Calculator
Estimate how long a file download may take from file size, connection speed and transfer efficiency.
Upload Time Calculator
Estimate file upload time from file size, upstream connection speed and expected transfer efficiency.
Bandwidth Calculator
Estimate recommended connection bandwidth from users, simultaneous activity, per-user demand and headroom.
Monthly Data Usage Calculator
Estimate monthly internet data use from streaming, video calls, other daily traffic and billing days.
Website Bandwidth Calculator
Estimate monthly website data transfer from page size, visits, pages per visit, cache savings and overhead.
IPv4 Subnet & CIDR Calculator
Calculate an IPv4 network address, mask, broadcast address, usable range and address count from CIDR.
Screen Size Calculator
Calculate physical screen width, height, area, aspect ratio and PPI from resolution and diagonal size.
Pixel Density (PPI) Calculator
Calculate display pixel density, pixel pitch, physical dimensions and megapixels from resolution and diagonal.
Aspect Ratio Calculator
Simplify width-to-height ratio and calculate proportional target dimensions for images, video and screens.
Image File Size Calculator
Estimate uncompressed and compressed image data size from dimensions, color depth and compression ratio.
Video File Size Calculator
Estimate video file size from duration, video bitrate and audio bitrate using decimal storage units.
Audio File Size Calculator
Estimate total audio storage from duration, bitrate and number of files.
Battery Life Calculator
Estimate battery runtime from milliamp-hour capacity, average load, efficiency and reserved capacity.
Battery Charging Time Calculator
Estimate battery charging time from capacity, start and target levels, current, efficiency and taper allowance.
UPS Runtime Calculator
Estimate simplified UPS battery runtime from voltage, amp-hours, battery count, usable depth, efficiency and load.
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About Our Technology & Computing Calculators
This collection covers common U.S. home, work and creator tasks without probing your devices. Every result is calculated locally from your entries and includes colorful details plus a five-step explanation.
Screens & Media
Calculate screen dimensions, PPI, aspect ratios and estimated image, video or audio storage.
Devices & Power
Estimate battery runtime, charging time and simplified UPS backup runtime.
Technical notice: Confirm critical network, electrical or purchasing decisions with current provider and manufacturer documentation.
Technology & Computing Calculator FAQs
Yes. All 16 calculators run free in the browser without sign-up.
No. They calculate from values you enter and do not probe your network, battery or device.
Network rates use decimal Kbps, Mbps and Gbps. File-size tools identify decimal and binary units where offered.
Use them as planning estimates and confirm critical sizing with current provider or manufacturer documentation.
Yes. Every result shows a five-step explanation containing the actual entered values, equation, rounding and final answer.
Yes. Forms, colorful result cards and explanation steps resize for phones, tablets and desktops.