Is the MEP Unit Converter free to use?

Yes. The MEP Unit Converter is a free browser-based planning calculator from I Love MEP.

Can the MEP Unit Converter be used for final engineering design?

No. The result is for planning, tender review, and coordination support. Final design must be checked by a qualified engineer against project specifications, authority requirements, and applicable standards.

Does the PDF report replace approved design calculations?

No. The PDF report records inputs, assumptions, warnings, and planning results. It should be reviewed before any construction, procurement, or authority submission decision.

MEP Unit Converter - Free MEP Calculator

Learn more

Formula logic, assumptions, limits, and worked-use guidance for this calculator.

How this tool helps

Use this as a quick site and tender conversion helper. It targets the common MEP conversions engineers repeatedly search for while checking HVAC, plumbing, and electrical assumptions.

Calculation methodology

Applies fixed engineering conversion factors for airflow, water flow, pressure, power, cooling capacity, and temperature.

View full methodology notes

Assumptions and limits

This is a planning-level calculator. Final decisions should be checked against approved project standards, local authority requirements, manufacturer data, and qualified engineering review.

Version history

v1.3.7-prelaunch: Added after competitor and keyword review showed unit conversion as a high-frequency utility search.

Input definitions and typical values

These notes explain what each input means and which values usually produce a more reliable planning result.

Value

Project input used directly in the calculation. Use measured, scheduled, manufacturer, or authority-approved values where available.

Conversion

Select the closest condition for the project. The available choices change the planning factor used by the calculator. Options: CFM to L/s, L/s to CFM, GPM to L/min, L/min to GPM, bar to psi, psi to bar, kW to BTU/h, BTU/h to kW, TR to kW, kW to TR, deg C to deg F, deg F to deg C.

Practical verification checklist

Confirm the selected standard profile is suitable for the project location and authority.
Replace sample values with project drawings, schedules, equipment data, or measured site values.
Review warnings, methodology, and PDF report before using the result outside early planning.
Verify final decisions against official standards, manufacturer data, consultant specifications, and local approvals.

Standards references for verification

For final design checks, verify calculator assumptions against the project documents and official standards bodies such as ASHRAE, NFPA, IEC, IET BS 7671, ICC, and CIBSE.