Template · Engineering
Pump hydraulic power calculator
Estimate hydraulic and electrical input power from flow, total head, fluid density, and combined efficiency.
Downloads are included in the $19.85 yearly membership. Sign in
XLSXCSVODSXMLNumbers| Pump hydraulic power calculator | ||||||
| Example data — replace the blue input cells with your own. | ||||||
| Estimate hydraulic and electrical input power from flow, total head, fluid density, and combined efficiency. | ||||||
| Populated records | 3 | |||||
| First record: Input kW | 3.8915 | |||||
| 60 record rows. Blue cells are inputs; dark cells calculate. | ||||||
| Duty point | Flow m³ per hour | Head m | Density kg per m³ | Combined efficiency | Hydraulic kW | Input kW |
| Example water duty | 50.0000 | 20.0000 | 1,000.0000 | 70.0% | 2.7241 | 3.8915 |
| Lower head | 50.0000 | 12.0000 | 1,000.0000 | 70.0% | 1.6344 | 2.3349 |
| Higher flow | 75.0000 | 20.0000 | 1,000.0000 | 68.0% | 4.0861 | 6.0090 |
Showing the first 16 of 72 rows and 7 of 7 columns. Cells with formulas show the formula on hover.
| Pump hydraulic power calculator | |||
| Method, inputs, and limits for this workbook. | |||
| What it does | |||
| Estimate hydraulic and electrical input power from flow, total head, fluid density, and combined efficiency. | |||
| How to use it | |||
| Replace the fictional records in blue cells with your own data. Keep the dark formula cells. Use the units stated in the column headers and keep each record on one row. Read the calculated columns and inspect the results before using them.… | |||
| Formulas and method | |||
| Hydraulic kilowatts equals density times 9.80665 meters per second squared times flow in cubic meters per second times head divided by one thousand. Input kilowatts divides hydraulic power by combined efficiency. | |||
| Assumptions and limits | |||
| Assumes steady incompressible flow and an entered total dynamic head. It does not size pipes, evaluate cavitation, or select a pump curve. Efficiency is entered as a fraction greater than zero and at most one. | |||
| Missing numeric inputs |
Showing the first 16 of 72 rows and 4 of 4 columns. Cells with formulas show the formula on hover.
What does this template do?
Estimate hydraulic and electrical input power from flow, total head, fluid density, and combined efficiency.
Hydraulic kilowatts equals density times 9.80665 meters per second squared times flow in cubic meters per second times head divided by one thousand. Input kilowatts divides hydraulic power by combined efficiency.
Assumes steady incompressible flow and an entered total dynamic head. It does not size pipes, evaluate cavitation, or select a pump curve. Efficiency is entered as a fraction greater than zero and at most one.
The working tab keeps editable inputs separate from formulas, with room for 60 records. The Notes tab explains the method and how to extend the range. All example records are fictional and can be replaced. Download a workbook format to retain formulas, or CSV when you need calculated values only.
What’s inside
- Hydraulic kilowatts equals density times 9.80665 meters per second squared times flow in cubic meters per second times head divided by one thousand. Input kilowatts divides hydraulic power by combined efficiency.
- 60 prepared record rows with blank-row guards
- Blue input cells, typed dates and numbers, and frozen column headers
- Notes with the method, assumptions, and range-extension instructions
Which tabs does the workbook have?
| Tab | What it holds |
|---|---|
| Worksheet | Estimate hydraulic and electrical input power from flow, total head, fluid density, and combined efficiency. |
| Notes | How to use the workbook, formula method, assumptions, and file format limits. |
What formulas does this template use?
This template holds 122 formulas in 168 cells across 2 tabs, so 73% of its cells calculate. They use 5 distinct functions; the longest formula is 97 characters.
| Function | Uses | What it does |
|---|---|---|
IF | 301 | one result when a test is true, another when false |
COUNT | 120 | counts numeric cells |
OR | 60 | true when any test is true |
COUNTIF | 2 | counts cells meeting one condition |
COUNTA | 1 | counts non-empty cells |
Counted from the workbook itself. Only functions that Excel, LibreOffice Calc, Google Sheets and Apple Numbers evaluate the same way are used, so the formulas survive every download format.
How do you use it?
- Replace the fictional records in blue cells with your own data. Keep the dark formula cells.
- Use the units stated in the column headers and keep each record on one row.
- Read the calculated columns and inspect the results before using them. Clear unused input rows; keep their formulas.
- The prepared range holds 60 records in rows 11–70. Extend formulas and summary ranges together if you add more rows.
What is it good for?
- Estimate hydraulic and electrical input power from flow, total head, fluid density, and combined efficiency
- Replacing the labeled fictional records with your own figures
- Checking a calculation before adapting it to a larger workbook
Questions about this sheet
How is the result calculated?
Hydraulic kilowatts equals density times 9.80665 meters per second squared times flow in cubic meters per second times head divided by one thousand. Input kilowatts divides hydraulic power by combined efficiency.
What assumptions should I check?
Assumes steady incompressible flow and an entered total dynamic head. It does not size pipes, evaluate cavitation, or select a pump curve. Efficiency is entered as a fraction greater than zero and at most one.
Can I add more than 60 records?
Yes. Copy the formula columns into new rows and extend every summary range to include them. Keep inputs and formulas in their original columns.
Are the example records real?
No. All example data is fictional and intended to demonstrate the formulas. Replace it before using the workbook for your own work.