ready~/unit-converter
// main.ts

# >Free Online Unit Converter – Convert Length, Weight, Temperature Instantly

>The most comprehensive unit conversion tool for students, engineers, and professionals.

const converter = 42;
/**
* UnitConvertTool.com provides fast, accurate, and free unit conversions for over 30 categories including length, weight, temperature, area, volume, time, speed, and more. Whether you need to convert meters to feet, kilograms to pounds, or Celsius to Fahrenheit, our tool delivers instant, precise results. No registration required – just enter your value and get your conversion immediately.
*/
$ convert --start$ ls --all
Length Conversion
ready
$ convert --from [unit] --to [unit] --value [number]
$
>
$ cat HOW_IT_WORKS.md

How to Use UnitConvertTool

Converting units is simple and takes just three easy steps.

01
$ select --unit

Select Unit Category

Choose from over 30 unit categories such as length, weight, temperature, volume, or any other measurement type you need.

02
$ input --value

Enter Your Value

Type the value you want to convert. You can enter any number, including decimals and negative values.

03
$ convert --execute

Get Instant Results

Your conversion result appears immediately. Copy it or continue converting other values.

$ ls converters/

Common Conversions

8 modules available

length.tsx
export const

Length Conversion

// Convert between meters, centimeters, inches, feet, and more
from "@/converters/length"
area.tsx
export const

Area Conversion

// Convert between square meters, square feet, acres, hectares, and more
from "@/converters/area"
weight.tsx
export const

Weight Conversion

// Convert between kilograms, grams, pounds, ounces, and more
from "@/converters/weight"
temperature.tsx
export const

Temperature Conversion

// Convert between Celsius, Fahrenheit, and Kelvin
from "@/converters/temperature"
volume.tsx
export const

Volume Converter

// Convert between different volume units including liters, milliliters, gallons, cups, and more.
from "@/converters/volume"
time.tsx
export const

Time Converter

// Convert between different time units including seconds, minutes, hours, days, weeks, months, and years.
from "@/converters/time"
speed.tsx
export const

Speed Converter

// Convert between different speed units including meters per second, kilometers per hour, miles per hour, knots, and more.
from "@/converters/speed"
energy.tsx
export const

Energy Converter

// Convert between different energy units including joules, calories, kilowatt-hours, and more.
from "@/converters/energy"
$ ls --all --converters
$ cat guides/

Featured Guides

Practical explainers for clothing sizes, drawings, ovens, recipes, and luggage—then convert with the matching tool.

2026-08-01

CM and Inches in Clothing Sizes: How to Convert Without Guessing

Learn how clothing size charts use centimeters and inches, when to convert body measurements, and how the exact 2.54 cm definition avoids sizing mistakes.

2026-08-05

Metric vs Imperial on Construction Drawings

How to read mixed metric and imperial dimensions on building plans, convert lengths and areas safely, and avoid squared-factor mistakes.

2026-08-08

Oven Temperatures: Converting °C and °F for Baking

Exact formulas for oven Celsius and Fahrenheit conversion, common baking setpoints, and why rough mental math fails for recipes.

2026-08-12

Recipe Cups, Milliliters, and Fluid Ounces: Avoiding Kitchen Unit Traps

US cups vs metric cups, fluid ounces vs weight ounces, and how to convert liquid recipe volumes without ruining texture.

2026-08-15

Kilograms and Pounds for Body Weight and Luggage

Convert kg and lbs for fitness tracking and airline baggage limits, with exact factors and practical rounding tips.

Browse all guides →
$ cat units.json

Supported Unit Categories

Our comprehensive converter supports a wide range of measurement units across multiple categories for all your conversion needs.

{
"Length": [

Meter, Kilometer, Mile, Inch, Foot, Yard, Centimeter, Millimeter, Nautical Mile

],
"Weight": [

Kilogram, Gram, Pound, Ounce, Ton, Milligram, Stone

],
"Temperature": [

Celsius, Fahrenheit, Kelvin

],
"Volume": [

Liter, Milliliter, Gallon, Quart, Pint, Cup, Fluid Ounce, Cubic Meter

],
"Area": [

Square Meter, Square Kilometer, Square Mile, Acre, Hectare, Square Foot, Square Inch

],
"Time": [

Second, Minute, Hour, Day, Week, Month, Year, Millisecond

],
}
features.ts
// Why choose our converter?

Why Choose UnitConvertTool

Clear formulas based on SI definitions and published conversion factors.

export const accurate

Accurate Formulas

Conversions use published SI definitions and standard conversion factors from sources such as BIPM and NIST.

export const free

Free Forever

No registration, no subscription, no hidden fees. Our tool is completely free to use.

export const responsive

Works Everywhere

Access our converter from any device – desktop, tablet, or mobile phone.

export const private

Privacy Protected

We don't store your conversion data. Your calculations stay private.

README.md

## About UnitConvertTool

UnitConvertTool.com is a free online unit conversion tool designed to help students, engineers, scientists, and everyday users convert between different measurement units quickly and accurately. Our mission is to provide the most comprehensive and user-friendly conversion experience on the web.

We support over 30 categories of unit conversions, including common measurements like length, weight, and temperature, as well as specialized units for engineering, physics, and electronics. Each conversion uses precise mathematical formulas to ensure accuracy.

Whether you're working on a school project, engineering calculation, or just need to convert a recipe measurement, UnitConvertTool is here to help. Our clean, intuitive interface makes unit conversion simple and hassle-free.

$ converter --ready

Start Converting Now

Choose a category and begin your unit conversion journey.

Length ConverterWeight ConverterTemperature Converter