SpeedCrunch

A free, open-source high-precision scientific calculator.

Built for STEM professionals, students and teachers.

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Free to download and use on Windows, macOS, and Linux.

• Up to 50 digits of precision, with complex number support
• 140+ functions, and a myriad of units and constants
• User-defined variables, functions, and units
• Vector and matrix support
• History rewriting, and per-result settings
• Keypad presets and a fully customizable layout
• Multiple active sessions with tabs, panes, or windows
• More than 40 translations, and over 40 color schemes