UD5 Toolkit
Angle Precision Converter - Online DMS to Degree & Radian
Convert between decimal degrees, degrees-minutes-seconds (DMS), radians, and grads. High-precision for surveying and navigation. Local tool.
Unit Converter - Quick Conversions
19+ toolsFuel Efficiency Converter - Online MPG L/100km & km/L
Convert fuel economy units between miles per gallon (US/UK), liters per 100 km, and kilometers per liter. Useful for international car comparisons.
Illuminance Converter - Online Lux & Foot-Candle Tool
Convert illuminance units: lux, foot-candle, phot. Useful for lighting design and photography. Quick and free.
Flow Rate Converter - Online GPM L/s & m³/h Tool
Convert volumetric flow rate units: gallons per minute, liters per second, cubic meters per hour. Useful for plumbing and hydraulics.
Data Transfer Rate Converter - Online Mbps Gbps & KiB/s
Convert network and data transfer speeds: bps, Kbps, Mbps, Gbps, KiB/s, MiB/s. A must when comparing internet plans. Fast and local.
Energy Converter - Online Joule Calorie BTU & kWh Tool
Convert energy units: Joule, calorie, BTU, kilowatt-hour, electronvolt. Useful for science and household energy calculations. Fully local.
Force Converter - Online Newton & Pound-Force Translator
Convert units of force: Newton, kilonewton, pound-force, dyne. Handy for physics homework and engineering. Private, no upload.
Area Converter - Online Square Feet & Acre Hectare Tool
Convert between square meters, square feet, acres, hectares, and more. Essential for real estate and land measurements. Instant results, private data.
Length Converter - Online Distance & Metric Imperial Unit Tool
Convert between all major length units: meter, kilometer, mile, yard, foot, inch, and more. Instant results in a clean interface. No registration.
Data Storage Converter - Online Byte KB MB GB TB Tool
Convert between digital storage units: bits, bytes, kilobytes, megabytes, gigabytes, and more. Binary and decimal interpretations available. A developer must-have.
Power Converter - Online Watt Horsepower & Kilowatt Tool
Convert power units: watt, kilowatt, horsepower, BTU/h. Quick reference for electrical and mechanical engineering. Browser-based.
Angle Converter - Online Degree Radian & Grad Tool
Convert angles between degrees, radians, and grads. Quick reference for mathematics and engineering. Simple and ad-free.
Torque Converter - Online Newton-Meter & Foot-Pound Tool
Convert torque units between Newton-meter, foot-pound, inch-pound, and more. Essential for mechanics and engineers. Instant local conversion.
Weight Converter - Online Mass & Weight Unit Calculator
Easily convert between kilograms, pounds, ounces, stones, and more. Supports both metric and imperial weight units. Instant and private conversions.
Temperature Converter - Online Celsius Fahrenheit Kelvin Tool
Convert temperature between Celsius, Fahrenheit, and Kelvin instantly. Simple slider and input fields. Useful for travel and science homework.
Radiation Converter - Online Gray Rad Rem & Sievert
Convert between units of absorbed dose and equivalent dose (Gray, Rad, Rem, Sievert). Educational and reference. Local calculation.
Speed Converter - Online mph km/h & Knots Calculator
Convert speed units such as miles per hour, kilometers per hour, knots, and meters per second. Accurate and quick, works offline in your browser.
Volume Converter - Online Gallon Liter & Cup Unit Tool
Convert volume and capacity units: gallon (US/UK), liter, milliliter, cup, and fluid ounce. Handy for cooking and science. Works entirely offline.
Pressure Converter - Online Bar PSI Pascal Atmosphere Tool
Convert between common pressure units: Pascal, Bar, PSI, atmosphere, and Torr. Useful for engineering and weather enthusiasts. Local calculation.