Orifice Flow Calculator
Discharge through a sharp-edged orifice
Whether you are estimating or double-checking a figure, Orifice Flow Calculator handles orifice flow calculator discharge coefficient tank drainage torricelli instantly. You provide Discharge Coefficient Cd, Orifice Diameter (m) and Head Above Orifice (m); the tool does the rest in real time. Every answer includes a transparent breakdown you can repeat by hand. Perfect for budgeting, planning, or checking someone else’s figures. Everything runs in your browser — your inputs are not sent to our servers, and it works offline after the first visit (currency conversion needs a live connection). One of 1206+ free CalcProMaster calculators covering orifice flow calculator discharge coefficient tank drainage torricelli, free online orifice flow calculator and similar everyday questions. Try Orifice Flow Calculator now and keep it handy for next time.
What does the page calculator do?
Orifice Flow Calculator works out the flow from the Discharge Coefficient Cd, Orifice Diameter, and Head Above Orifice, following standard Engineering conventions — the page defaults produce a flow of 7.63 L/s.
- Inputs: Discharge Coefficient Cd, Orifice Diameter, and Head Above Orifice.
- Output: the flow, plus the intermediate steps behind it.
- Method: the standard Engineering formula, evaluated entirely in your browser.
Quick answer
With the default inputs (discharge coefficient cd of 0.62, orifice diameter of 0.05, head above orifice of 2), orifice flow calculator returns a flow of 7.63 L/s. Assumptions and limits are summarized below.
How does it work?
Orifice Flow Calculator computes the flow directly from your inputs — the Discharge Coefficient Cd, Orifice Diameter, and Head Above Orifice feed the formula. Nothing is uploaded: the math runs locally in your browser and the result appears as you type.
How it works
At its core, Orifice Flow Calculator takes the Discharge Coefficient Cd, Orifice Diameter, and Head Above Orifice and evaluates the standard formula step by step, so the result can be checked rather than trusted on faith.
How to use it
- Discharge Coefficient Cd — a core input the formula applies directly — keep the units consistent with the label.
- Orifice Diameter — one of the values the calculation builds from; the result reflects exactly what you type here.
- Head Above Orifice — used in the first stage of the calculation, so entering it accurately matters more than any later refinement.
- The output panel in orifice flow calculator leads with the headline result and follows with the steps behind it, so the value can be checked rather than assumed.
- Iterate. Vary the inputs one at a time; the movement in the flow shows which lever matters most for your orifice flow question.
The formula behind the result
Orifice Flow Calculator lists every intermediate step in the result panel, so the derivation of the figure can be checked line by line.
Worked example: with discharge coefficient cd of 0.62, orifice diameter of 0.05, head above orifice of 2, this orifice flow calculation returns Flow: 7.63 L/s. The same run reports Area: 19.63 cm² | Jet velocity: 6.26 m/s (Torricelli) | Sharp edge Cd ≈ 0.61–0.63.
The steps it follows:
- Formula: Q = Cd × A × √(2gh)
- A = πd²/4 = 19.63 cm²
- √(2 × 9.81 × 2) = 6.264 m/s
- Q = 0.62 × 1.963e-3 × 6.264 = 7.63 L/s
Substitute your own values and the same steps produce your answer — that is the point of a calculator that shows its working.
Understanding the result
Interpret the flow against the inputs that produced it — the same number from different inputs can mean different things, which is why the pairing is always shown.
Where it helps
Typical uses for Orifice Flow Calculator include planning and budgeting, comparing scenarios side by side, and double-checking a figure before acting on it — anywhere the figure needs to be defensible rather than guessed.
Common mistakes
Copying the flow without its assumptions is the frequent error — the number is valid for exactly the inputs shown, so carry the context with it.
Tip: Bookmark this page — after the first visit it works offline, so the flow is one tap away even without a connection.
Assumptions and limitations
Results from Orifice Flow Calculator are estimates computed from the values entered; real-world outcomes can differ when fees, taxes, or conditions not modeled here apply.
Why use this calculator
Because the working is visible: Orifice Flow Calculator shows each operation behind the figure in the steps panel, so you can verify the result instead of trusting a black box.
From Our Guides Library
Frequently Asked Questions
What does the tool calculate?
Orifice Flow Calculator keeps the whole calculation in front of you — the Discharge Coefficient Cd, Orifice Diameter, and Head Above Orifice, the formula, the intermediate steps, and a worked example you can reproduce line by line. Because the page doubles as documentation: Orifice Flow Calculator puts the formula, a worked example, and the assumptions right beside the calculator.
How is the result calculated?
The first steps are formula: q = cd × a × √(2gh), then a = πd²/4 = 19.63 cm². The calculation in Orifice Flow Calculator applies the standard Engineering method, keeping full precision internally and rounding only the final display.
What do I need to use the Orifice Flow Calculator?
The Discharge Coefficient Cd, Orifice Diameter, and Head Above Orifice it asks for, or the page defaults if you just want to see the calculation work. Each input maps directly to the formula, and changing any one of them recalculates the flow instantly.
What does the result from the tool mean?
The main number the orifice flow calculator returns is the flow for your exact inputs, and the supporting figures and step list give it context. Treat the flow as a planning figure rather than a binding quote, and confirm important decisions with the relevant professional.
When is the page most useful?
Common scenarios for Orifice Flow Calculator: planning and budgeting, comparing scenarios side by side, and double-checking a figure before acting on it. The step list makes it equally useful for learning the method and for double-checking someone else's numbers. Run Orifice Flow Calculator twice with deliberately low and high inputs; the spread tells you how sensitive the flow is, which a single run never shows.