# BTU/Hour Square Foot to J/s∙m² Conversion

## BTU/Hour Square Foot to Joule/Second Square Meter Conversion - Convert BTU/Hour Square Foot to Joule/Second Square Meter (BTU/h∙ft² to J/s∙m²)

### You are currently converting Heat Flux Density units from BTU/Hour Square Foot to Joule/Second Square Meter

1 BTU/Hour Square Foot (BTU/h∙ft²)

=

3.15459 Joule/Second Square Meter (J/s∙m²)

BTU/Hour Square Foot : The BTU per hour per square foot is a unit of heat flux density which is a US Customary and British Imperial units. Its symbol is BTU/h•ft².

Joule/Second Square Meter : The joule per second per square meter is a SI derived unit of heat flux density. Its symbol is J/s•m². One joule per second per square meter is equal to 1 watt/meter².

### Heat Flux Density Conversion Calculator

1 BTU/Hour Square Foot = 3.15459 Joule/Second Square Meter

### How to convert BTU/Hour Square Foot to Joule/Second Square Meter ?

1 btu/hour square foot (BTU/h∙ft²) is equal to 3.15459 joule/second square meter (J/s∙m²).

1BTU/h∙ft² = 3.15459J/s∙m²

The heat flux density Ǿq in joule/second square meter (J/s∙m²) is equal to the heat flux density Ǿq in btu/hour square foot (BTU/h∙ft²) times 3.15459, that conversion formula:

Ǿq(J/s∙m²) = Ǿq(BTU/h∙ft²) × 3.15459

#### How many Joule/Second Square Meter in a BTU/Hour Square Foot?

One BTU/Hour Square Foot is equal to 3.15459 Joule/Second Square Meter:

1BTU/h∙ft² = 1BTU/h∙ft² × 3.15459 = 3.15459J/s∙m²

#### How many BTU/Hour Square Foot in a Joule/Second Square Meter?

One Joule/Second Square Meter is equal to 0.317 BTU/Hour Square Foot:

1J/s∙m² = 1J/s∙m² × 0.317 = 0.317BTU/h∙ft²

#### How to Convert 5 BTU/Hour Square Foot to Joule/Second Square Meter?

Ǿq(J/s∙m²) = 5(BTU/h∙ft²) × 3.15459 = 15.77295J/s∙m²