Boiler Feed Pump Power Calculator
Estimate boiler feed pump hydraulic and shaft power from flow, total dynamic head, fluid specific gravity, and pump efficiency.
Data handling: Processing: this tool runs in your browser and does not send entered data to a tool-service endpoint. Site analytics, advertising, or embedded resources may still make separate requests. See the Privacy Policy for site-level details.
About Boiler Feed Pump Power Calculator
In practical terms, Boiler Feed Pump Power Calculator estimate boiler feed pump hydraulic and shaft power from flow, total dynamic head, fluid specific gravity, and pump efficiency. Using it is a three-step job: 1) Enter the required flow and choose cubic meters per hour or US gallons per minute, 2) Enter total dynamic head and choose meters or feet, 3) Enter the feedwater specific gravity and pump efficiency as a percentage from the manufacturer's data at the intended duty point. As part of the ProfitTool calculators suite, this tool is built for direct everyday use. Review any data-handling notice before submitting information.
Boiler Feed Pump Power Calculator is a free, browser-based boiler feed pump calculation from ProfitTool. Estimate boiler feed pump hydraulic and shaft power from flow, total dynamic head, fluid specific gravity, and pump efficiency. Review any usage notes shown on this page before relying on its availability. Review the tool's data-handling notice before entering sensitive information; some features store settings locally or contact external services.
If you came here from the Travel Budget Calculator, try Pregnancy Due Date Calculator to finish the job.
How to use Boiler Feed Pump Power Calculator
- 1Enter the required flow and choose cubic meters per hour or US gallons per minute.
- 2Enter total dynamic head and choose meters or feet. Use a value that accounts for the system's elevation, pressure, and losses as appropriate to your design data.
- 3Enter the feedwater specific gravity and pump efficiency as a percentage from the manufacturer's data at the intended duty point.
- 4Compare the calculated hydraulic and estimated shaft power; confirm equipment selection and operating constraints with a qualified engineer.
Working alongside the Trip Gas Calculator? Travel Budget Calculator handles the follow-up case.
Popular Use Cases
- Case 1Model a loan, mortgage or credit-card payoff before signing anything.
- Case 2Track fitness targets — BMI, BMR, water intake, calories and body fat.
- Case 3Split bills, tips and shared expenses without the drama.
- Case 4Convert grades, GPAs and academic scores between systems.
Common Mistakes to Avoid
Mixing monthly and annual rates
A 12% annual rate is 1% monthly, not 12% monthly. This single slip inflates results by an order of magnitude.
Ignoring fees, taxes and insurance
The headline number is rarely the number you pay. Add the extras before you compare two offers.
Rounding too early
Round only the final figure. Rounding intermediate steps compounds error across long schedules.
Already used our Pregnancy Due Date Calculator? Trip Gas Calculator covers the other half of the workflow.
Technical Limitations & Boundary Conditions
- Results reflect the inputs and assumptions shown. Fees, taxes, rates, and personal circumstances can change the real-world outcome; verify important figures with the relevant provider or authority.
- Extreme values outside standard ranges may be constrained by device memory or numerical precision boundaries.
Key Terms Explained
- Principal
- The original amount borrowed or invested, before any interest is applied.
- APR
- Annual Percentage Rate — the yearly cost of a loan including fees, which is what makes it comparable between lenders.
- Compounding
- Earning interest on previously earned interest. Frequency (monthly vs annually) meaningfully changes the total.
- Amortisation
- The schedule showing how each payment splits between interest and principal over the life of a loan.
Pro Tips & Best Practices
- Enter exact numbers — the calculator handles rounding at the end for accuracy.
- Check the displayed units, dates, and assumptions; currency selection may format values without converting them.
- Treat estimates as planning aids and verify tax, fee, health, and lending inputs with authoritative sources.
Frequently Asked Questions
What is the boiler feed pump power calculation?›
This estimate uses hydraulic power P = ρgQH and divides by pump efficiency to estimate shaft power. Flow is converted to cubic meters per second, head to meters, and specific gravity is used to estimate fluid density. Manufacturer pump curves are needed for actual performance.
What is the difference between hydraulic power and shaft power?›
Hydraulic power is the power transferred to the fluid. Shaft power is higher because pump efficiency is below 100%; the estimate divides hydraulic power by the entered pump efficiency. Motor electrical input can be higher still because motor and drive losses are not included.
What inputs does this pump power calculator need?›
Enter flow rate, total dynamic head, fluid specific gravity, and pump efficiency. Use the units shown beside each field and enter efficiency from the pump manufacturer's data at the expected duty point when available.
Can this calculator select or size a boiler feed pump?›
No. It estimates power for the entered duty point. It does not assess pump curves, feedwater temperature, NPSH, cavitation, transients, materials, redundancy, code requirements, or motor sizing. Have the complete system reviewed by a qualified engineer.
How accurate are the results from Boiler Feed Pump Power Calculator?›
Review the formula, units, rounding, and assumptions documented on Boiler Feed Pump Power Calculator's page. Compare an example with a trusted source before relying on an estimate.
Are there related calculators tools I should use alongside it?›
Yes — the related-tools panel on this page links the utilities most people open right before or after Boiler Feed Pump Power Calculator, so you can chain them into one workflow.
Does Boiler Feed Pump Power Calculator store the numbers I enter?›
Storage and network behavior depend on the individual tool. Review its data-handling notice before entering sensitive information.
Is Boiler Feed Pump Power Calculator free to use?›
Yes — Boiler Feed Pump Power Calculator is completely free with no signup, watermark, trial or hidden paywall, however often you use it.
Can I use this boiler feed pump calculation for official or legal purposes?›
Treat the output as a planning estimate. Taxes, fees and lender-specific rules vary, so confirm the final figure with your bank, accountant or the relevant authority.
Does Boiler Feed Pump Power Calculator work on mobile phones and tablets?›
Yes. The layout is mobile-first and tested on iOS Safari, Android Chrome and every current desktop browser, with tap targets sized for thumbs.