Calculators Tools
Explore a collection of free online calculators on Toolhox for math, finance, business, percentages, dates, age, interest, and everyday calculations. Enter your values and get quick, simple results without installing software.
2 tools
15 subcategories
Subcategories
BMI Calculators
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Car
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Gold
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Grams
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Gutter
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House
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HVAC
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Plumber
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Roof
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Septictank
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Shipping Calculator
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Siding
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Solar
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Storm
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All Tools
✦ New
Free Orthogonal Projection Calculator (2026)
Free orthogonal projection calculator: project vector a onto vector b, or vector a onto a plane with normal n. Supports 2D, 3D and n-D up to 10 dimensions with step-by-step solution, magnitudes, angle, distance and 2D/3D diagram. 100% client-side - runs entirely in your browser.
Calculators
✦ New
Speech Length Calculator: Words To Minutes Converter
Calculate exact speech duration based on your word count and speaking speed. Free tool to convert words to minutes for presentations, speeches, and essays.
Calculators