Btu (th) inch/second/sq. foot/°F to Btu (IT) inch/second/sq. foot/°F
Please provide values below to convert Btu (th) inch/second/sq. foot/°F to Btu (IT) inch/second/sq. foot/°F, or change ↔.
Btu (th) inch/second/sq. foot/°F
Definition: Similar to the IT-based Btu, but based on the thermochemical definition of Btu.
Historyandorigin: A variation used in traditional thermodynamic studies before the adoption of IT-Btu.
CurrentUse: Mainly found in legacy industrial and building specifications.
funfact: Older systems often calculated heat loss and gain with this variation of Btu, even though it's not as common today.
Btu (IT) inch/second/sq. foot/°F
Definition: Measures thermal conductivity using British thermal units (IT) with an inch of material thickness, per second, and per square foot.
Historyandorigin: An imperial-based unit, historically used in North American heating systems.
CurrentUse: Used in HVAC systems, especially in residential and commercial buildings in the US.
funfact: You can find this unit in the specifications of insulation and building materials in the US!
Btu (th) inch/second/sq. foot/°F to Btu (IT) inch/second/sq. foot/°F Conversion Table
| 1 Btu (th) inch/second/sq. foot/°F | 0.9993312315 Btu (IT) inch/second/sq. foot/°F |
| 2 Btu (th) inch/second/sq. foot/°F | 1.998662463 Btu (IT) inch/second/sq. foot/°F |
| 3 Btu (th) inch/second/sq. foot/°F | 2.9979936945 Btu (IT) inch/second/sq. foot/°F |
| 5 Btu (th) inch/second/sq. foot/°F | 4.9966561575 Btu (IT) inch/second/sq. foot/°F |
| 10 Btu (th) inch/second/sq. foot/°F | 9.9933123149 Btu (IT) inch/second/sq. foot/°F |
| 50 Btu (th) inch/second/sq. foot/°F | 49.966561575 Btu (IT) inch/second/sq. foot/°F |
| 100 Btu (th) inch/second/sq. foot/°F | 99.933123149 Btu (IT) inch/second/sq. foot/°F |
| 1000 Btu (th) inch/second/sq. foot/°F | 999.33123149 Btu (IT) inch/second/sq. foot/°F |
| 10000 Btu (th) inch/second/sq. foot/°F | 9993.3123149 Btu (IT) inch/second/sq. foot/°F |
| 100000 Btu (th) inch/second/sq. foot/°F | 99933.123149 Btu (IT) inch/second/sq. foot/°F |
| 1000000 Btu (th) inch/second/sq. foot/°F | 999331.23149 Btu (IT) inch/second/sq. foot/°F |
How to Convert Btu (th) inch/second/sq. foot/°F to Btu (IT) inch/second/sq. foot/°F
1 Btu (th) inch/second/sq. foot/°F = 0.9993312315 Btu (IT) inch/second/sq. foot/°F
1 Btu (IT) inch/second/sq. foot/°F = 1.0006692161 Btu (th) inch/second/sq. foot/°F
we use cross multiplication method
Btu (th) inch/second/sq. foot/°F → Btu (IT) inch/second/sq. foot/°F
1 → 0.9993312315
1.5 → ?( suppose x)
=>1.5*0.9993312315=1*x
by simplifying
x=1.4989968472