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Calculators

Critical Rental Calculators

Resources for application and equipment calculations.

 

Please find below calculators for compressed air, flow and volume to provide assistance measuring site conditions, equipment conversion specs and application needs.

Compressed Air Flow Conversion Calculator

Our Air flow Conversion Calculator helps you understand your environment’s air flow, so you can find effective rental solutions that meet your specific needs, avoid maintenance issues and downtime, and improve operational efficiency. Conditions inputs are Pressure(psia), Temperature(F) and Humidity(%) along with the Flow inputs: Standard(cfm), Actual(cfm) and Inlet(cfm).

Conditions: Pressure (psia) Temperature (°F) Humidity (%)
Standard
Actual
Inlet
Flow: Standard (cfm) Actual (cfm) Inlet (cfm)
Standard
Actual
Inlet

Control Storage Calculation

Our Control Storage Calculator with help you identify required volume of the receiver because storage can be used in numerous ways to control demand events in the system by reducing both the amount of pressure drop and the rate of decay. Inputs include Flow Requirement, CFM, Event time in seconds, Atmospheric Pressure, PSIA and Maximum Pressure Drop, PSID.

Inputs
Results
V (gal) = Required Volume of the Receiver, Gallons
0

Volume of a Cylinder

Our Volume of a cylinder calculator helps you identify the volume of a given receiver, normally measured in gallons. Larger sizes are generally expressed, or measured, in cubic feet. Inputs include Diameter of Cylinder in inches and Length of Cylinder in inches with the output in whatever units you prefer.

Inputs
Results
V (ft3) = Volume in Cubic Feet
0
V (g) = Volume in Gallons
0

Motor Brake Horsepower

Our Motor Brake Horsepower calculator helps you identify amount of power delivered at the engine output shaft of a piston engine. Brake horsepower is the unit used for the calculation of an engine's capacity of doing work. This is the power actually delivered by the engine and is therefore the capacity of the engine. Inputs include the P.F. = Power Factor, Amps, volts and Motor Efficiency.

Inputs
Results
bhp = Brake Horsepower
0

Pump up formula

Our Pump Up calculator helps calculate whether or not your air compressor is running at correct flow or not along with the time taken for the pressure of your tanks to move from one level to another. Input your volume of the receiver in gallons, the volume of a pipe greater than 3 inches in diameter to FT3, Atmospheric Pressure, Time of Event in Seconds and Maximum Pressure Drop resulting in a calculated cfmcomp = Compressor volume.

Inputs
Results
cfmcomp = Compressor volume
0

Pressure drop calculation

Select unit:

This calculator calculates pressure drop for a non-restricted run of pipe or hose

Inputs
m³/min
m
bar
mm
Results
Expected Pressure drop
bar

Motor Full Load Amperage

Inputs
V
%
Results
0.00 A

Compressed Air Unit Converter

This easy to use unit converter allows you to convert key pressure, volume, power, flow, temperature, and energy units.

PRESSURE

Inputs
Results
kPa
0
bar
0
Psi
0
atm
0
mm Hg
0
Torr
0

VOLUME

Inputs
Results
m3
0
l
0
ft3
0
in3
0
gallons British
0
gallons USA
0

POWER

Inputs
Results
kw
0
hp
0
cal/s
0
Kcal/h
0
Btu/h
0

FLOW

Inputs
Results
m3/h
0
m3/min
0
l/min
0
l/s
0
cfm
0

TEMPERATURE

Inputs
Results
°C
0
k
0
°F
0

ENERGY

Inputs
Results
kWh
0
kcal
0
kJ
0

These calculators are provided by Critical Rental Solution free of charge. Critical Rental Solutions assumes no liability for their use. Important information should be confirmed with alternative sources.