Free Engineering Tools

MEP & FM Engineering Calculators

Professional tools for HVAC engineers, MEP designers and facilities management teams — completely free, no signup required.

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HVAC Calculator

AC Tonnage Calculator

Calculate the exact air conditioning capacity for any room — supports 80+ countries with climate-specific multipliers. Get results in tons, BTU/hr and kW.

80+ countries 3-step wizard Tons / BTU / kW

Use Calculator →

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Facilities Mgmt SFG 20

PPM Checklist Generator

Generate SFG 20-aligned planned preventive maintenance checklists for 60+ assets across HVAC, electrical, fire, water, BMS and security systems. Download as Word or PDF.

60+ assets SFG 20 aligned Word & PDF

Generate Checklist →

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Facilities Mgmt FM Standard

SOP Generator

Generate Standard Operating Procedures for any FM equipment or task. 10 procedure types, 12 equipment presets, real FM-standard steps. Download as Word or PDF.

10 procedure types 12 equipment Word & PDF

Generate SOP →

More tools coming soon

We are building more free MEP & FM engineering tools. Suggest what you need via the contact page.

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CFM Calculator

Coming soon

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Electrical Load Calculator

Coming soon

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Pump Head Calculator

Coming soon

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