Propane Orifice Size Calculator
Estimate a propane gas-orifice diameter from appliance input, pressure and discharge coefficient for engineering reference.
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transparent result
Calculator inputs
Propane Orifice Size Calculator results
How the calculation works
Orifice area is estimated from gas flow, pressure differential, density and discharge coefficient.
What to verify
Gas conversion and orifice changes are safety-critical and must follow the appliance manufacturer and qualified gas technician.
How accurate is this calculator?
It is a transparent planning calculation based on the entered values and stated assumptions. Verify inputs and obtain professional or supplier confirmation where the decision is consequential.
Does it use U.S. defaults?
Yes. U.S. units, terminology, pricing conventions and rules are the primary defaults where location matters.
Is data sent to a server?
No. The calculation runs locally in the browser and does not send entered values to a remote calculation service.