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BUILT FOR EVERYDAY MEP WORK

Small changes.
Clearer decisions.

Your engineering toolbox. Convert units, check a calculation and compare what happens when an input changes.

Calculate → Save baseline → Change inputs → Compare

EXPLORE A WHAT-IF

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Change the air flowCompare the resulting air velocity →Change the electrical loadCompare power or current →Change the tank dimensionsCompare geometric capacity →

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Universal Converter Length & Size Area Volume HVAC Electrical Plumbing Pressure Flow Pipe Duct Fire Fighting Construction Favorites Recent Tools

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Universal ConverterType a value and two units for an instant result.

Length ConverterEnter a decimal or fraction and see every equivalent.

Area ConverterSquare feet, square meters and other area units.

Volume ConverterUS and Imperial gallons are shown separately.

Rectangular Tank VolumeInternal length × width × height. Full geometric capacity.

TR / BTU / kW CoolingCooling capacity, not electrical consumption. 1 TR = 12,000 BTU IT/hr.

HVAC Air FlowConvert volumetric air flow instantly.

Temperature ConverterNegative Celsius and Fahrenheit values are supported.

Air VelocityVelocity = volumetric air flow ÷ free cross-sectional area.

Rectangular Duct AreaInternal cross-sectional area, not sheet-metal surface area.

Round Duct AreaUse the internal diameter of the duct.

W / kW / MWInstant power conversion.

HP / kWMechanical horsepower (550 ft·lbf/s), not metric PS or boiler HP.

Single Phase PowerAC real power using voltage, current and power factor.

Three Phase PowerBalanced three-phase AC; use line-to-line voltage and line current.

kW / kVA / Power FactorReal power = apparent power × power factor.

Energy ConsumptionEnergy = constant power × operating time. kWh is energy, not power.

Flow ConverterVolumetric flow. GPM always means US liquid gallons per minute.

Pressure ConverterWater-column units assume 1,000 kg/m³ density and standard gravity.

Fire Fighting Pressure ConverterPressure conversion only; no sprinkler, pump sizing or code compliance assessment.

Pump Head / PressureWater only: density 1,000 kg/m³, gravity 9.80665 m/s². Not pump selection.

Pipe VolumeCylinder volume using actual internal diameter, not nominal size.

Pipe Size ReferenceNominal inch labels and mathematical inch/mm values are different from physical pipe diameters.

kg / lbKilograms and avoirdupois pounds.

Slope CalculatorUse horizontal run. Ratio is rise : horizontal run.

Rectangular AreaLength × width using the same dimension unit.

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Engineering Note: These tools are intended for quick reference and estimation. Verify final engineering selections, equipment sizing and code compliance according to project specifications and applicable UAE/international standards.

Unit factors follow NIST SI conversion references. Formulas & assumptions