Turn kilograms per minute into liters per minute. Use density, presets, formulas, and saved exports. Built for engineers handling fluids, slurries, chemicals, and water.
| Fluid | Density (kg/L) | Mass Flow (kg/min) | Volume Flow (L/min) |
|---|---|---|---|
| Water (20 C) | 0.998 | 10.000 | 10.020 |
| Diesel | 0.832 | 10.000 | 12.019 |
| Milk | 1.030 | 10.000 | 9.709 |
| Sulfuric Acid | 1.840 | 10.000 | 5.435 |
Main Formula: L/min = kg/min / density (kg/L)
Why it works: Mass flow tells you how much material moves each minute. Density tells you how much mass exists in one liter. Dividing mass flow by density gives the matching liquid volume flow.
Extra outputs:
A kg/min to l/min calculator converts mass flow into volumetric flow. Engineers need this when pumps, tanks, meters, and dosing systems are sized by volume. Many specifications list flow in kilograms per minute. Many machines, however, use liters per minute. Density connects both values. This calculator removes guesswork and keeps unit conversion consistent.
The core rule is simple. Divide mass flow by density. Mass flow is measured in kilograms per minute. Density is measured in kilograms per liter. The result becomes liters per minute. Higher density means less volume for the same mass. Lower density means more volume for the same mass. This matters for water, oils, chemicals, slurries, and food liquids.
This engineering calculator helps in process design, utility planning, and maintenance work. It is useful for pump selection, nozzle sizing, batching, tank fill studies, and line checks. It also supports production estimates. Teams can compare kg/min, l/s, m3/h, and US gpm in one place. That makes reports easier to read and easier to verify.
The most important input is density. You can enter density directly, choose a preset fluid, or use specific gravity. Each method supports different workflows. Presets save time. Direct density supports lab data. Specific gravity helps when supplier sheets list relative density instead of absolute density. Always use density values that match the real fluid and operating condition.
This page also adds quick exports and an example table. That helps with documentation and handover. The result appears above the form for faster review. The layout stays simple on desktop and mobile devices. Use this calculator whenever you need a fast, traceable, and reliable kg/min to l/min conversion during commissioning and troubleshooting work.
A common mistake is mixing density units. Some data sheets show kg/m3, not kg/L. Convert carefully before using the formula. Another mistake is using water density for every liquid. That can distort volumetric flow and equipment sizing. Also check whether the value changes with temperature or concentration. Small density errors can create large volume differences in continuous processes.
Use the formula L/min = kg/min / density. Enter mass flow and a valid density in kg/L. The calculator then returns liters per minute and extra engineering units.
Only when density is close to 1 kg/L. Water near room temperature is close, but many liquids are not. Oils, acids, milk, and brines need their own density values.
If you know the fluid identity, a preset is faster. If you have lab or supplier data, direct density is better. Use specific gravity when the source sheet gives relative density.
US gpm is included because many pump curves and vendor sheets use it. Seeing both L/min and gpm reduces manual conversion errors during equipment selection.
Temperature can change density. When temperature changes a lot, use a density value that matches the real operating condition. That keeps volumetric flow results more accurate.
Enter the mass flow, select how you want to supply density, and submit. Review the result block above the form. Then export the results as CSV or PDF if needed.
Yes. The displayed formula shows the exact substitution used for your inputs. That helps with checking, reporting, and technical reviews.
No. It converts steady mass flow using density. For compressible gases or fluids with large density changes, use a process model that accounts for pressure and temperature changes.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.