Astronomical Unit Converter - Convert astronomical distances between AU, light-years, parsecs, kilometers, miles, and light-time units. Includes light-travel time, cosmic scale visualization, and real-world distance comparisons (Earth-Moon to Andromeda). New

Cm to Feet and Inches Converter - Convert centimeters to feet and inches instantly with step-by-step calculations, visual height comparison, and quick presets for common heights. Featured

CM to Inches Converter - Instantly convert centimeters (cm) to inches with our free online converter. Includes conversion formula, visual ruler guide, and common conversions. Featured

Feet and Inches to Cm Converter - Convert feet and inches to centimeters instantly with visual height comparison, multi-unit output (cm, meters, total inches), and common height reference examples. Featured

Feet to Meters Converter - Instantly convert feet to meters with visual comparison scale, feet and inches input support, metric breakdown (centimeters/millimeters), and common length reference examples.

Inches to cm Converter - Convert inches to centimeters instantly with interactive visual scale, fractional inch support, multiple output units (cm, mm, m), and real-world size comparisons.

Inches to MM Converter - Convert inches to millimeters instantly, including fractional inches like 3 1/2, 1/4 or 3/8 and mixed numbers. See the exact millimeter value on an aligned dual inch-and-mm ruler, get cm, meters and thou, the nearest 1/16 inch, and a full step-by-step breakdown. 1 inch = 25.4 mm exactly.

Km to Miles Converter - Convert kilometers to miles (and miles back to kilometers) instantly. Built for runners with one-tap presets for 5K, 10K, half marathon, marathon and ultra distances, a dual-scale ruler that shows the same distance in km and miles at once, automatic race recognition, and a clear step-by-step formula. Works on mobile and desktop.

Meters to Feet Converter - Instantly convert meters to feet with visual comparison scale, feet and inches breakdown, fractional inch display, and common length reference examples.

Miles to Km Converter - Convert miles to kilometers (and kilometers back to miles) instantly. Built for drivers and travelers: one-tap distance presets, a dual-scale road ruler that shows the same distance in miles and kilometers at once, automatic road-sign speed recognition (see what an mph limit becomes in km/h), and a clear step-by-step formula. Works on mobile and desktop.

MM to Inches Converter - Convert millimeters (mm) to inches and get the answer as a decimal AND as the nearest fraction (1/16", 1/32", 1/64"). See where your measurement lands on an animated ruler, how much rounding error the fraction introduces, plus cm, feet-and-inches and meter equivalents with a full step-by-step breakdown.