Free Unit Converters
Length, weight, volume, temperature — metric ↔ imperial, plus engineering and pharma units.
Instant unit conversion calculators for students, travelers, engineers, and QA teams. No signup, no ads — copy results into homework or batch records.
Unit Converter
Free universal unit converter: meters to feet, kg to lbs, liters to gallons, °C to °F.
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Engineering Unit Converter
Convert pressure and petroleum volumes — psi to bar, bbl to m³, scf to sm³.
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Pharma Unit Converter
Pharmaceutical mass and concentration conversions for QA and formulation homework.
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Molar Mass Calculator
Parse chemical formulas and compute molar mass; optional grams-to-moles.
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Interactive Periodic Table
Color-coded periodic table for students. Search by name or symbol, filter by metal type, copy element facts.
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