W/m²·K to BTU/h·ft²·°F

About Unit Converter

A unit converter changes a measurement from one unit to another. Pick a category — length, weight, temperature, data, area, speed, and 75+ more, including engineering and scientific units like pressure, torque, and viscosity — enter a value, and get an accurate conversion instantly. It runs in your browser with no sign-up and nothing to install.

Frequently asked questions

How many unit categories are supported?

Over 75, from everyday units (length, mass, temperature, volume, area, speed, data storage) to technical and scientific ones (energy, pressure, torque, viscosity, molar concentration, luminance, and more).

Does it convert engineering and scientific units?

Yes. Alongside common units it covers engineering and scientific categories — force, pressure, torque, thermal, flow, radiology, and CSS/typography units — with precise conversion factors.

Are the conversions accurate?

Yes. Conversions use standard factors and precise formulas, including non-linear ones like temperature, so results are exact.

Do I need to install an app?

No download needed — it's a free web app that runs in any modern browser on phone, tablet, or desktop, with nothing to install and nothing sent anywhere.