Mechanical
HVAC and fire fighting tools for cooling, airflow, ducts, chilled water, exhaust, sprinklers, pumps, tanks, and clean agent systems.
HVACFire Fighting
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Fast browser tools for MEP engineers and contractors
Every MEP tool you need in one place
Free browser-based calculators and planning tools for electrical, HVAC, plumbing, fire fighting, ELV, and MEP project work.
Start typing to filter the 26 active tools.
Cooling Load EstimatorMechanical · HVACDuct Sizing & Velocity CheckerMechanical · HVACAirflow & CFM CalculatorMechanical · HVACChilled Water Pipe Sizing ToolMechanical · HVACExhaust Fan Sizing CalculatorMechanical · HVACSprinkler Density & Coverage PlannerMechanical · Fire FightingFire Pump Sizing CalculatorMechanical · Fire FightingFire Hose Reel / Hydrant Demand ToolMechanical · Fire FightingFire Water Tank Capacity CalculatorMechanical · Fire FightingFM200 / Clean Agent Quantity EstimatorMechanical · Fire FightingCable Sizing & Voltage Drop PlannerElectrical · Electrical PowerElectrical Load Schedule BuilderElectrical · Electrical PowerTransformer Sizing & Spare Capacity CalculatorElectrical · Electrical PowerGenerator Sizing & Starting Load PlannerElectrical · Electrical PowerPower Factor Correction & Payback CalculatorElectrical · Electrical PowerFire Alarm Battery Backup CalculatorElectrical · Fire AlarmFire Alarm Loop Load CalculatorElectrical · Fire AlarmFire Alarm DIP Switch CalculatorElectrical · Fire AlarmCCTV Storage CalculatorElectrical · ELVData Rack Power & UPS CalculatorElectrical · ELVAccess Control Door Hardware PlannerElectrical · ELVWater Demand CalculatorPlumbing · Plumbing & DrainagePump Head CalculatorPlumbing · Plumbing & DrainageDrainage Pipe Sizing AssistantPlumbing · Plumbing & DrainageWater Tank Capacity PlannerPlumbing · Plumbing & DrainageHot Water Demand CalculatorPlumbing · Plumbing & DrainageConduit Fill CalculatorElectrical · Electrical · PowerShort Circuit Current CalculatorElectrical · Electrical · PowerLighting Lux CalculatorElectrical · Electrical · PowerBreaker Size CalculatorElectrical · Electrical · PowerkVA to Amps CalculatorElectrical · Electrical · PowerAmpacity Derating CalculatorElectrical · Electrical · PowerWater Pipe Pressure Drop CalculatorPlumbing · Plumbing · DrainageDrainage Slope CalculatorPlumbing · Plumbing · DrainagePump Horsepower CalculatorPlumbing · Plumbing · Drainage
Choose your MEP branch
Start with Mechanical, Electrical, or Plumbing. Each branch opens into focused tool groups instead of forcing users through a long calculator dump.
Electrical
Power, fire alarm, ELV, cable sizing, transformers, generators, CCTV, UPS, access control, and loop/battery planning.
Electrical PowerFire AlarmELV
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Plumbing
Water demand, tanks, pumps, drainage sizing, hot water demand, and domestic water planning tools.
Plumbing & Drainage
View Plumbing ToolsPopular tools
Common tools for quick checks, estimation support, site planning, and technical decision support.
Cable Sizing & Voltage Drop Planner
Check current, selected cable ampacity, voltage drop, and minimum cable guidance.
Open Tool
Cooling Load Estimator
Estimate cooling load, equipment tonnage, ventilation impact, and safety margin.
Open Tool
Fire Pump Sizing Calculator
Estimate fire pump flow, head, jockey pump range, and pressure margin.
Open Tool
Fire Alarm Battery Backup Calculator
Calculate standby Ah, alarm Ah, derating, spare margin, and recommended battery size.
Open Tool
Pump Head Calculator
Calculate static head, pressure head, friction loss, velocity, and total dynamic head.
Open Tool
CCTV Storage Calculator
Calculate CCTV retention storage by camera count, bitrate, recording hours, RAID, and spare.
Open Tool
Water Demand Calculator
Estimate daily demand, peak demand, diversity effect, and storage requirement.
Open Tool
Duct Sizing & Velocity Checker
Check duct velocity, equivalent diameter, airflow density, and noise-risk level.
Open Tool
Transformer Sizing & Spare Capacity Calculator
Calculate required transformer kVA, standard size, loading percentage, and spare margin.
Open Tool
FM200 / Clean Agent Quantity Estimator
Estimate clean agent quantity, cylinder count, and room-volume sensitivity.
Open ToolBuilt for practical MEP work
Each tool includes sample data, clear results, warnings, assumptions, interpretation, feedback, and branded print output.
No loginUse tools immediately without accounts.
Browser-basedNo project data is intentionally stored on our server in this static build.
Decision supportResults include interpretation and warnings, not only formula output.
Print readyGenerate branded reports through browser Print / Save as PDF.