Gas Nose Engineering Tools
Free Gas Calculators & Detection Tools
Convert gas concentrations, estimate calibration gas usage, screen room-release scenarios and identify practical sensor options with clear inputs and visible assumptions.
Choose a tool for your task
Each page opens directly to a working calculator or searchable reference tool.
PPMGas Concentration ConverterConvert ppm, ppb, %vol, mg/m³ and µg/m³ with temperature and pressure.Open tool →LEL%LEL ConverterConvert gas-specific values between %LEL, %vol and ppm.Open tool →DATAGas Properties DatabaseSearch formulas, molecular weights, densities and flammable ranges.Open tool →CALCalibration Gas Consumption CalculatorEstimate per-test, monthly and annual calibration-gas use.Open tool →CYLCalibration Cylinder Duration CalculatorEstimate continuous runtime and available test count.Open tool →mA4–20 mA Gas CalculatorConvert transmitter current and gas concentration in either direction.Open tool →O₂Oxygen Depletion CalculatorEstimate theoretical oxygen reduction after an inert-gas release.Open tool →CO₂CO₂ Room Risk CalculatorEstimate theoretical room concentration from a CO₂ release.Open tool →REFRefrigerant Charge Limit CalculatorRun an LFL-based room-volume screening calculation.Open tool →OEMGas Sensor Product FinderFilter practical sensing options by gas, range and product format.Open tool →
No matching tool was found. Try a gas name, unit or application.
Designed for practical use
01Choose the task
Start with concentration, calibration, room safety, signal conversion or sensor selection.
02Enter known values
Units and reference conditions are kept visible next to every input.
03Review assumptions
Use the result with the displayed formula, limitations and related resources.
These tools provide engineering estimates and educational references. Verify safety decisions, alarm settings and compliance calculations against the applicable standard, manufacturer instructions and actual site conditions.
Need a sensor, detector or OEM solution?
Share the target gas, range, environment, output and product format to receive practical options.