Download Time
Estimate how long a file download takes at a given internet speed.
15 tools
Tech calculators
Choose the question you actually want answered. Each page includes plain-language input examples, a result breakdown, assumptions, Pro scenario comparison and related tools.
Upload Time
Estimate how long a file upload takes using your upload speed.
File Size
Estimate raw data size from item count and bytes per item.
Video File Size
Estimate video file size from bitrate and duration.
Video Bitrate
Find the average bitrate needed to fit a video into a target file size.
Storage Calculator
See how many files fit in a storage device and how much space a collection uses.
Internet Speed Converter
Convert between Mbps, Gbps and MB/s.
Internet Data Usage
Estimate monthly data use from streaming or transfer bitrate and daily time.
Battery Runtime
Estimate runtime from battery watt-hours and device power draw.
Power Bank Charges
Estimate how many full phone charges a power bank can provide.
Screen PPI
Calculate pixel density from resolution and diagonal screen size.
Aspect Ratio
Reduce width and height to a simple ratio and decimal shape.
Image Resolution
Calculate megapixels and aspect ratio from pixel dimensions.
Token Calculator
Estimate language-model tokens from text length without sending the text itself.
API Cost
Estimate request cost from input/output tokens and prices per million tokens.