CU
Conversion & Utilities Calculators
Access free, interactive calculators for conversion & utilities. Click any tool to open the workspace on WebCalcSys.com.
SPD
Speed Converter
Convert km/h, mph, m/s, and knots.
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GB
Data Storage Conv
Convert bytes, KB, MB, GB, TB, and PB.
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T
Time Converter
Convert seconds, minutes, hours, and days.
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{}
JSON Formatter
Format, validate, and beautify JSON.
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64
Base64 Encoder
Encode and decode Base64 strings.
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.*
Regex Tester
Test regular expressions with matches.
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#
Color Converter
Convert HEX, RGB, HSL, and more.
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ID
UUID Generator
Generate random UUIDs and GUIDs.
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MD
Markdown Preview
Preview Markdown while editing.
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Browse Other Calculator Categories
Explore calculation sheets and guides in other mathematical and scientific fields.