Unit Converters

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Metric Conversion Calculator

Convert measurements seamlessly across the International System of Units (metric SI) and US Customary / British imperial standards. Our comprehensive

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Length Conversion Calculator

Convert any distance or length across millimeters, centimeters, meters, kilometers, inches, feet, yards, miles, and nautical miles. All calculations u

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Weight Conversion Calculator

Convert mass and weight between metric units (milligrams, grams, kilograms, tonnes) and imperial/customary units (ounces, pounds, troy ounces, stones,

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Speed Conversion Calculator

Convert velocity and speed between miles per hour (mph), kilometers per hour (km/h), meters per second (m/s), feet per second (ft/s), knots, and Mach

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Inches to Feet Calculator

Convert total inches into both decimal feet and practical feet-and-inches notation (e.g. 65.5 in = 5 ft 5.5 in). This specialized tape-measure calcula

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Feet to Inches Calculator

Convert architectural decimal feet or combined feet-and-inches plans into total inches for material procurement, stud spacing, and precision machining

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Knots to MPH Calculator

Convert marine and aeronautical knots into statute miles per hour (mph) and kilometers per hour (km/h). A knot equals one nautical mile per hour (exac

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Tire Size Conversion Calculator

Convert standard metric tire size codes (such as 225/45R17 or 265/70R16) into physical dimensional specifications including sidewall height, total dia

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