Superheat Calculator

All tools

Electrical calculators
Electrical Load CalculatorEV Charger Installation CalculatorEV Load Management (Biggest Charger)Heat Pump Water Heater Circuit120V Induction Range CircuitWire Size CalculatorVoltage Drop CalculatorMCA & MOCP Breaker CalculatorConduit Bending CalculatorConduit Fill CalculatorBox Fill CalculatorNEC 2026 ChangesNEC Adoption by StateCan My Panel Handle It?Can My Panel Handle Solar?Sub-Panel Wire Size Calculator
HVAC calculators
BTU / HVAC Load CalculatorDuct Size CalculatorRound to Rectangular Duct ConverterCFM CalculatorStatic Pressure & Friction RateCold-Climate Heat Pump CapacitySuperheat & Subcooling CalculatorA2L Line Set CalculatorA2L Charge Limit CalculatorEPA Refrigerant Leak Rate CalculatorSerial Number LookupTonnage From Model Number
Reference charts
Wire Ampacity Chart (310.16)Conduit Fill Chart (THHN in EMT)Box Fill Volume Chart (314.16)Ground Wire Size Chart (250.122)Ampacity Derating Factors (310.15)Standard Breaker Sizes (240.6)Motor Full-Load Current (430.248/250)A2L Refrigerant PropertiesBTU Per Square Foot Chart
Electrical answers
Wire size for appliancesHow many amps does an appliance useWhat size conduit for a wire pullWatts to amps calculatorHow many outlets on a circuitWhat size breaker do I needWhat size breaker for a wire gaugeWhat size ground wireCopper vs aluminum wireTHHN vs THWNConduit types (EMT, PVC, RMC, more)NEC 2023 vs 2026 load calculationMini split breaker sizeMrCool mini split breaker sizeA2L (R-454B) changeout circuit checkOffset multiplier chart90° deduction chartKick calculatorSaddle bend calculator
HVAC answers
What size air conditioner do I needHow many BTU to heat a houseWhat size mini splitWhat size garage heaterR-454B vs R-410AR-32 vs R-410AR-32 vs R-454BR-410A PT chartR-454B PT chartR-32 PT chartR-22 PT chartR-134a PT chartR-404A PT chartR-407C PT chartR-448A PT chartR-449A PT chartR-290 (propane) PT chartR-454B superheat calculatorR-32 superheat calculatorR-410A superheat calculatorR-22 superheat calculatorR-134a superheat calculatorTarget superheat calculatorSubcooling on a heat pumpHow to calculate superheatNormal superheat & subcooling valuesSuperheat & subcooling chartR-454B line set sizingR-32 line set sizingR-410A line set sizingHeat pump capacity at 5F chartBalance point & backup heatR-410A phase-out & timeline
Business
Service Pricing CalculatorMarkup vs Margin Calculator