Toolkit

Unit Converters Toolkit

Convert everyday and technical units for length, weight, temperature, speed, area, volume, data storage, pressure, energy, power, time duration, angle, frequency, force, torque, density, acceleration, flow rate, electric current, electric charge, electric voltage, electric resistance, capacitance, inductance, electric conductance with browser-local converters, copyable summaries, and text-cleanup handoffs.

Recommended path through this toolkit

Use this order when you want a clean path through the live tools in this collection. Each tool also remains available as its own focused page.

Metric and imperial unit converters

Normalize common measurements before updating specs, listings, recipes, shipping notes, floor plans, travel notes, or documentation.

Length Converter
Convert millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles directly in your browser.
Live tool
Weight Converter
Convert milligrams, grams, kilograms, tonnes, ounces, pounds, and stone directly in your browser.
Live tool
Temperature Converter
Convert Celsius, Fahrenheit, and Kelvin with formula-based output directly in your browser.
Live tool
Speed Converter
Convert meters per second, kilometers per hour, miles per hour, feet per second, and knots directly in your browser.
Live tool
Area Converter
Convert square millimeters, square centimeters, square meters, hectares, square inches, square feet, square yards, and acres in your browser.
Live tool
Volume Converter
Convert liters, milliliters, US gallons, UK gallons, quarts, pints, cups, tablespoons, teaspoons, and fluid ounces directly in your browser.
Live tool
Data Storage Converter
Convert bytes, KB, MB, GB, TB, KiB, MiB, GiB, bits, kilobits, and megabits directly in your browser.
Live tool
Pressure Converter
Convert pascals, kilopascals, megapascals, bar, millibar, psi, atmospheres, torr, and inHg directly in your browser.
Live tool
Energy Converter
Convert joules, kilojoules, calories, kilocalories, watt-hours, kilowatt-hours, BTU, foot-pounds, and electronvolts directly in your browser.
Live tool
Power Converter
Convert watts, kilowatts, megawatts, milliwatts, mechanical horsepower, metric horsepower, BTU per hour, and foot-pounds per second directly in your browser.
Live tool
Time Duration Converter
Convert nanoseconds, microseconds, milliseconds, seconds, minutes, hours, days, and weeks directly in your browser.
Live tool
Angle Converter
Convert degrees, radians, gradians, turns, arcminutes, and arcseconds directly in your browser.
Live tool
Frequency Converter
Convert hertz, kilohertz, megahertz, gigahertz, and cycles per minute directly in your browser.
Live tool
Force Converter
Convert newtons, kilonewtons, meganewtons, dynes, kilogram-force, pound-force, and ounce-force directly in your browser.
Live tool
Torque Converter
Convert newton meters, newton centimeters, kilonewton meters, pound-feet, pound-inches, ounce-inches, and kilogram-force meters directly in your browser.
Live tool
Density Converter
Convert kilograms per cubic meter, grams per cubic centimeter, grams per liter, pounds per cubic foot, pounds per cubic inch, ounces per cubic inch, and pounds per US gallon directly in your browser.
Live tool
Acceleration Converter
Convert meters per second squared, kilometers per hour per second, feet per second squared, inches per second squared, standard gravity, and Gal directly in your browser.
Live tool
Flow Rate Converter
Convert milliliters per second, liters per second, liters per minute, cubic meters per second, cubic meters per hour, US gallons per minute, cubic feet per minute, and cubic feet per second directly in your browser.
Live tool
Electric Current Converter
Convert microamperes, milliamperes, amperes, and kiloamperes directly in your browser.
Live tool
Electric Charge Converter
Convert millicoulombs, coulombs, kilocoulombs, milliamp-hours, amp-hours, Faradays, and elementary charges directly in your browser.
Live tool
Electric Voltage Converter
Convert microvolts, millivolts, volts, kilovolts, and statvolts directly in your browser.
Live tool
Electric Resistance Converter
Convert milliohms, ohms, kilohms, megohms, and gigohms directly in your browser.
Live tool
Capacitance Converter
Convert picofarads, nanofarads, microfarads, millifarads, and farads directly in your browser.
Live tool
Inductance Converter
Convert nanohenries, microhenries, millihenries, and henries directly in your browser.
Live tool
Electric Conductance Converter
Convert microsiemens, millisiemens, siemens, kilosiemens, and mho directly in your browser.
Live tool

Format converted measurement lists

After converting values, clean or format copied measurement lists before pasting them into spreadsheets, docs, CMS fields, or product notes.

Prefix / Suffix Lines
Add configurable prefix and suffix text to each pasted line with optional line-edge trimming and blank-line handling in your browser.
Live tool
Find and Replace Text
Find and replace text online with case-sensitive, whole-word, first-match, replace-all, and regex options.
Live tool

How this toolkit helps

Use this toolkit as a measurement normalization workflow: convert the source measurement, swap units for comparison, repeat for adjacent everyday or technical unit types, then format the final list with text cleanup tools when needed.

Open the tool that matches your next step, run it in your browser, then return to this toolkit when the job needs another focused utility.

Related category hubs

Category hubs group the same tools by topic, while this toolkit groups them by practical use case.