Skip to main content
Z

Unit Converter — Length, Weight, Volume, Temperature & Data Size

Convert between length, weight, volume, area, time, temperature, speed, data size, and angle units. Live grid across every unit in the dimension.

Free No signup Client-side Privacy friendly Updated
Unit Value

How to use

  1. 1 Pick a dimension — length, weight, volume, area, time, temperature, speed, data size, or angle.
  2. 2 Enter the value you want to convert.
  3. 3 Choose the unit your value is in. Every other unit in the dimension updates live in the table below.
  4. 4 Click Copy on any row to push that converted value to your clipboard.

Why use this tool

  • Nine dimensions in one tool — no need to bookmark separate length / weight / temperature converters.
  • Live grid shows every unit at once; the row matching your selected From unit is highlighted.
  • Temperature uses linear formulas (offset + scale), so Kelvin / Rankine round-trip correctly.
  • Data sizes distinguish SI (kB, MB, GB) from binary IEC (KiB, MiB, GiB) — both shown side by side.

Frequently asked questions

Why does the tool give 1 month = 30.44 days?

For non-calendar conversions, month is the Gregorian average of 365.2425 / 12 days. If you need exact calendar-month durations between specific dates, use the Date Calculator instead.

What is the difference between kB and KiB?

kB is SI (1000 bytes). KiB is IEC binary (1024 bytes). Storage vendors use SI; operating systems and RAM use binary. The 1024 vs 1000 gap is why a "1 TB" drive shows as ~931 GiB.

Does the tool handle very large or very small numbers?

Yes. Values outside 1e-4..1e15 are displayed in scientific notation to keep precision readable.

Why isn't pressure / energy / fuel economy listed?

They will land in a future phase. For now, this tool covers the nine dimensions that hit 95% of search demand.

What is Unit Converter?

A Unit Converter is a tool that converts a value from one unit of measurement to another within the same dimension. It runs in the browser and covers length, weight, volume, area, time, temperature, speed, data size, and angle, showing a live grid of the value expressed across every unit in the selected dimension.

Features

Many dimensions

Length, weight, volume, area, time, and temperature, each with metric and imperial units.

Exact factors

Uses defined constants (1 in = 2.54 cm, 1 lb = 0.45359237 kg) rather than rounded approximations.

Temperature formulas

Celsius, Fahrenheit, and Kelvin via linear offset/scale, not a simple factor.

100% private

Runs client-side — nothing is uploaded.

Example

Input

1 inch

Output

2.54 centimeters

Common use cases

  1. 1

    Convert recipe measures

    Switch cups, tablespoons, and milliliters when following a recipe from another region.

  2. 2

    Metric ⇆ imperial

    Convert miles to kilometers or pounds to kilograms for travel and shipping.

  3. 3

    Quick engineering checks

    Convert inches to millimeters or square feet to square meters on the fly.

Summary

Zerethon's unit converter converts between metric and imperial units across length, weight, volume, area, time, and temperature entirely in your browser. Conversions use exact factors from the SI and the 1959 international yard-and-pound agreement (e.g. 1 inch = 2.54 cm exactly), with temperature handled by linear formulas. Nothing is uploaded.

Category
Creator
Pricing
Free
Privacy
Browser-based
Signup
Not required

References

Privacy

Your data never leaves your browser unless explicitly stated. Unit Converter runs entirely client-side — no server upload, no logging, no tracking of your input.

Related tools

YouTube Thumbnail Downloader

Download YouTube thumbnails in all available resolutions. Just paste a video URL.

Open tool

Open Graph Preview

Test how your URL appears when shared on social media. Preview Facebook, Twitter, LinkedIn, and Slack cards.

Open tool

Word & Character Counter

Count words, characters, sentences, and paragraphs. Reading time, speaking time, and top keywords — instant.

Open tool

Lorem Ipsum Generator

Generate Lorem Ipsum placeholder text — by paragraphs, sentences, or words. Optional HTML wrapping.

Open tool

Build, share, and grow on Zerethon Social

Free signup. Earn points, collect achievements, and connect with creators worldwide.

Sign up free