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DOCUMENTS
CALCULATIONS
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Pipe Calculations ▾
Pipe Friction Loss Calculation
Heating Pipe Pressure Loss Calculation
Steam Pipe Calculation
Potable Water Pressure Loss Calculation
Waste Water Pipe Calculation
Rainwater Downpipe Diameter and Flow Rate Calculation
Air Ducts ▾
Air Duct Calculation
Flexible Air Duct Calculation
Air Grille Calculation
Diffuser Selection
Elbows ▾
Elbow Pressure Loss Calc.
Elbow, Smooth Radius, Splitter Vane
Air Duct Tee Loss ▸
45° EntryBranch,Diverging
Rect. Main to Round Tap,Diverging
Rectangular Cross, Diverging
Rectangular Wye, Diverging
Heel-Tapped Elbow, 90 Degree
45° Entry Branch, Converging
Round Tap to Rect. Main, Converging
Cross of the Type As = Ac, Converging
Reduction Transition ▸
Rect., Two Sides Parallel, Symmetrical
Round to Rectangular
Pyramidal, Exhaust/Return Systems
Rect., Two Sides Parallel, Symmetrical
Air Conditioning ▾
Psychrometric Chart Plot
Psychrometric Diagram Parameters
Gas Calculation ▾
Gas Pipe Sizing
Gas Flow Unit Convert
Real Gas Calculator
Two-Phase (Solid–Liquid) Flow
EQUATIONS
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Equation Solution ▾
Nonlinear Equation System Roots
Cubic Equation Solution
Quartic Equation Solution
Quintic Equation Solution
Sextic Equation Solution
Differential Equations ▾
Differential Equation Solution
Higher Order Differential Equation
Systems of First Order Differential Eq.
Systems of nth Order Differential Equations
UNIT CONVERSION
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Length, Area and Volume Units ▾
Distance and length conversion
Area conversion
Volume conversion
Force, Weight and Mass Units ▾
Weight and Force Converter
Mass Converter
Density Conversion
Specific Volume Conversion
Moment of Inertia Conv. (Mass)
Second Moment of Area
Mol Conversion
Pressure, Energy, Power Units ▾
Pressure Conversion
Energy and Work Conversion
Power Conversion
Torque Conversion
Viscosity Units ▾
Dynamic Viscosity
Kinematic Viscosity
Temperature Units
Velocity and Flow Units ▾
Velocity Unit Converter
Angular Velocity Converter
Flow Rate Unit Converter
Mass Flow Rate Converter
Gas Flow Unit Conversion
Heat Units ▾
Thermal Conductivity Conversion
Heat Transfer Coefficient Conv.
Specific Heat Capacity Conversion
Heat Flux Density Conversion
Light Units ▾
Luminous Intensity Conversion
Luminance Unit Converter
Illumination Conversion
Electricity Units ▾
Electric Current Conversion
Electric Potential Conversion
Electric Charge Conversion
Electric Resistance Conversion
Capacitance Conversion
Magnetic Flux Conversion
Magnetic Flux Density Conversion
Inductance Conversion
Radiation - Activity Conversion
Radiation - Exposure Conversion
Other ▾
Dimension System Basic Units
CGS Units
USCS Units
CONTACT
Unit Conversion
›
Heat Transfer Coefficient Converter
Heat Transfer Coefficient Converter
This heat transfer coefficient converter enables accurate conversion of U-values between SI units (W/m²·K) and Imperial units (BTU/h·ft²·°F). It is designed for HVAC, building physics and thermal insulation calculations, ensuring consistent and reliable unit conversion in heat transfer analysis.
Value to convert
Prefix
yotta
zetta
exa
peta
tera
giga
mega
kilo
hecto
deka
deci
centi
milli
micro
nano
pico
femto
atto
zepto
yocto
metric
watt per square meter·K {W/m²K}
calorie (th)/m² hour°C {cal/m²h°C}
calorie (IT)/m² hour°C {cal/m²h°C}
Imperial/US
Btu (th)/foot²hour°F {Btu/ft²h°F}
Btu (IT)/foot²hour°F {Btu/ft²h°F}
Btu (th)/foot²second°F {Btu/ft²s°F}
Btu (IT)/foot²second°F {Btu/ft²s°F}
= …
yotta
zetta
exa
peta
tera
giga
mega
kilo
hecto
deka
deci
centi
milli
micro
nano
pico
femto
atto
zepto
yocto
metric
watt per square meter·K {W/m²K}
calorie (th)/m² hour°C {cal/m²h°C}
calorie (IT)/m² hour°C {cal/m²h°C}
Imperial/US
Btu (th)/foot²hour°F {Btu/ft²h°F}
Btu (IT)/foot²hour°F {Btu/ft²h°F}
Btu (th)/foot²second°F {Btu/ft²s°F}
Btu (IT)/foot²second°F {Btu/ft²s°F}
Basic unit dimensions : [M][T]
-3
[Θ]
-1
SI Unit : W/m
2
.K