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Industrial Calculators

HVAC/R and refrigerant math for the field, superheat and subcool, PT chart lookups, retrofit guidance, and live refrigerant pricing. Type your numbers, get an instant cited answer.

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Compressed air

Report Builder Zero-to-Hero Proposal Builder Control Strategy Advisor Downtime Cost Equipment Health Scorecard Header Pressure Optimizer Leak Load Estimator Receiver Sizing Check Compliance Checklist Dispatch On-Time KPI Multi-Site KPI Rollup Overtime Reduction PM Schedule Builder Parts Reorder Check SLA Response Tracker Service Contract Health Technician Scorecard Week Route & Dispatch Planner Air Quality Selector BHP ↔ SCFM Converter CAGI Model Finder Moisture Load / Dryer Sizing Oil Carryover / ISO Class PM Interval Reference Pipe Sizing Quote Builder Specific Power Rater System Audit Scorecard System Sizing (SCFM)Energy & Leak Audit Compressor Troubleshooter Air Dryer Diagnostic Compressor Fault Codes Pipe / Header Sizing PM Interval Planner Maintenance Tracker CAGI Data Finder Control Strategy / Receiver Sizing Overtime / Labor Cost Service Scheduler AirSpec Compare VSD ROI Calculator Air Quality / ISO 8573-1 Selector System Sizing Audit Scorecard

EPA 608 / HVAC-R

EPA 608 Practice Test PT Chart Lookup Superheat / Subcool Calculator Refrigerant Retrofit Wizard Refrigerant Price Tracker HVAC/R Troubleshooting Chiller Fault Codes HVAC & VRF Fault Codes Boiler Fault Codes Refrigeration Fault Codes PPE & Safety Quick-Card Knowledge Base Search

Controls & automation

Air Quality Class Picker Analog Scaler Arc-Flash PPE and Boundary Picker Compressor Control Mode Selector Compressor Trip Diagnoser Conduit Fill Checker Electrical for Compressors Interlock Trip Checker Loop Power and Burden Checker Motor Nameplate Decoder Peck Drill Cycle Helper Power Factor and Capacitor kVAR Helper RTD and Thermocouple Reader Shock Approach Boundary Lookup Siemens to Allen-Bradley Translator Speed, Feed and G/M-Code Decoder Tapping Feed (G84)Transmitter Range Scaler VFD to Motor Cable-Length Checker Voltage Drop and Wire-Run Checker Work Offset and Tool Comp Decoder Addressing Decoder Boolean Ladder Trainer Data Type Sizer IP / NEMA Enclosure Lookup ISA Tag Decoder Number Base Converter Scan Cycle Explainer Timer Preset Helper Phase Sequence Identifier Power Factor Correction Sizer Three-Phase Power and Current Two-Wattmeter Power Reader Voltage Imbalance Checker Wye vs Delta Converter Controls Field Tools PLC 101 Toolkit Controls Skills Check Three-Phase Power Tools BAS Controls Fault Codes

Pump & pipe

Recruiting & hiring

Super Screener Meta Job Builder

Candidate

Resume Coach Cover Letter Generator Prep Agent

Superheat / Subcool Calc

Measure superheat and subcool from suction/liquid pressure and line temp with in-range verdicts.

PT Chart Lookup

Pick a refrigerant and temperature, get instant bubble and dew point pressures from NIST-traceable data.

Refrigerant Retrofit Wizard

Pick a from/to refrigerant pair and get oil change, TXV, and drop-in guidance.

Refrigerant Price Tracker

Current bulk pricing per refrigerant with a built-in lbs-to-cost estimator.

Every result is cited

Calculators reference NIST refrigerant thermodynamic data, ASHRAE 34, and manufacturer service literature. Compressed-air, three-phase power, and pump/pipe calculators live inside their trade families.