Tested
Decimal to Hex Converter
Convert integers between binary, octal, decimal and hexadecimal.
Technology Calculators
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Free technology calculators for everyday questions, from quick checks to detailed breakdowns.
Technology tools (40)
- Tested
Download Time Calculator
Transfer time at a given speed.
Technology Calculators
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eDPI Calculator
Effective DPI from mouse DPI and in-game sensitivity.
Technology Calculators
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Hex Calculator
Add, subtract or multiply hexadecimal numbers.
Technology Calculators
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Hex to Text Converter
Decode hexadecimal bytes as UTF-8 text.
Technology Calculators
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Image Resolution Calculator
Megapixels and print size of an image.
Technology Calculators
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IP Subnet Calculator
IPv4 network, broadcast, mask and host range from an address and CIDR prefix.
Technology Calculators
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Latency to Distance Calculator
Approximate one-way distance from round-trip latency.
Technology Calculators
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Media File Size Calculator
File size of an audio or video stream from its bitrate and duration.
Technology Calculators
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Memory Utilization Calculator
Share of memory in use.
Technology Calculators
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Mining Time Estimate Calculator
Expected time to find a proof-of-work block.
Technology Calculators
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Network Throughput Calculator
Maximum TCP throughput from window size and round-trip time.
Technology Calculators
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All technology calculators by topic (40)
Cryptography
Display
Gaming
Media
Networking
Number Systems
Storage
About technology calculators
Technology Calculators help you turn a question into a clear, checkable answer. Each tool lists its inputs, shows the formula it relies on and explains how to read the result.
Browse by topic using the filters, or search for a specific tool. Tools that are still being built are clearly marked as previews and are not presented as finished calculators.
Frequently asked questions
Are the technology calculators calculators free?
Yes. Every calculator on Calculator Atlas is free to use and requires no sign-up.
How are results verified?
A calculator is only published after its formula has been implemented, tested against reference values and reviewed. Pages still in development are labeled as previews.