Guides
In-depth, plain-language guides on units, audio, storage, and clinical readings — written by an engineer, cross-referenced to the right WuTools converter or calculator.
Choosing the Right Audio Format
WAV, FLAC, MP3, Opus, AAC: which one is right for your podcast, song, voice memo, or long-term archive — and what bit-rate to use.
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Degrees vs Radians: When to Use Which
Degrees feel natural; radians are required by physics and code. This is the difference, the conversion, and the rule of thumb for picking either.
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How to Read an FFT Spectrum: A Practical Field Guide
What every spike, hump, and skirt on an FFT plot actually means — and which spectrum analyzer settings change them.
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MB vs MiB: Why Your 1 TB Drive Shows 931 GB
Drive manufacturers count in 1000s. Operating systems count in 1024s. Same drive, different number — here's the rule that explains it.
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Understanding Blood Pressure Readings
Plain-language explainer for systolic, diastolic, mmHg vs kPa, and what your home monitor's number actually represents.
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