---
title: "HVAC Pro Calculator: NEC + P-T - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "HVAC Pro Calculator — BTU load sizing, duct calc, NEC voltage drop, refrigerant P-T charts, superheat & subcooling, plus camera nameplate scanning. Field tools for HVAC techs and electricians. Every f"
---

# HVAC Pro Calculator: NEC + P-T — United States
> BTU, Duct, P-T & Voltage

![HVAC Pro Calculator App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/96/27/a6/9627a68b-b205-1e78-4a2c-69bd194f8544/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [PLAYRIOT](https://apptail.io/developer/playriot-YLtWgc)
**Category:** Utilities
**Rating:** 5.0/5 (1 ratings)
**Price:** Free
**Bundle ID:** com.playriot.app.HVAC-Pro-Calculator
**Store:** Apple App Store
**Country:** United States
**Version:** 1.3.10 (released 2026-10-11)
**Original Release:** 2026-05-13
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6768459507)
**AppTail Page:** [https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/united-states](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/united-states)

## HVAC Pro Calculator Description
HVAC Pro Calculator — BTU load sizing, duct calc, NEC voltage drop, refrigerant P-T charts, superheat & subcooling, plus camera nameplate scanning. Field tools for HVAC techs and electricians. Every formula cited (ASHRAE, NEC, SMACNA). No ads, no tracking.

WHAT YOU GET — FREE

• BTU & Cooling Load — Heat and cool sizing using ASHRAE-derived rules of thumb. Square footage, ceiling height, climate zone, occupancy, and sun exposure.
• Unit Converter — BTU/hr ↔ kW ↔ tons, CFM ↔ L/s ↔ m³/h, °F ↔ °C, PSI ↔ kPa ↔ bar. Everything an HVAC tech converts in a day.
• Save up to 2 jobs — Name and store calculations locally. No account, no cloud.

UPGRADE TO PRO — 10 field calculators + camera nameplate scanning

• PlateScan — Point your camera at any condenser or furnace nameplate. On-device OCR reads the model and serial and decodes tonnage, manufacture date, and refrigerant type, then drops them straight into your calc. Works offline.
• Duct Sizing — Manual D simplified via the ASHRAE friction-rate equation. Round and rectangular duct, equivalent-diameter solver, velocity check with noise warnings.
• Voltage Drop & Wire Size — NEC voltage-drop formula sized to NEC Table 310.16 ampacity. Single- or three-phase, copper or aluminum. Recommends the smallest AWG that meets both ampacity and your drop limit.
• Refrigerant P-T Charts — Pressure ↔ temperature for R-410A, R-32, R-454B, and R-22. Saturation tables baked from manufacturer data, interpolated for any temp or pressure in range.
• Superheat & Subcooling — Charging diagnostics off the P-T tables for fixed-orifice and TXV systems. Enter the target from the unit's charging chart and a status badge flags on-target, undercharged, or overcharged.
• Refrigerant Charge — Adjusts the nameplate charge for non-standard line-set length (per Copeland AE 17-1335) and returns the exact amount to add or recover.
• System Capacity (ΔT) — Actual sensible capacity an installed system is delivering, from measured airflow and supply/return temperature split.
• Psychrometric — Give any two of dry bulb, wet bulb, RH, or dew point; returns the full state — humidity ratio, enthalpy, specific volume, and the remaining temperatures (ASHRAE Fundamentals Ch. 1).
• Fan Laws — Scales CFM, static pressure, and brake horsepower from a known operating point to a new RPM.
• Sheet Metal Offset — Diagonal cuts and angles for duct transitions, per SMACNA HVAC Duct Construction Standards.
• Capacitor Test — Actual μF of a run capacitor from in-circuit amps and volts, compared to nameplate with an ADD / OK / REPLACE verdict (±6%).
• Unlimited Saved Jobs — Remove the 2-job cap; save every calculation by job name.
• PDF Export — One-tap PDF for customer estimates and code submittals.

WHY PROS PICK HVAC PRO

• Cited sources, not "approximate." Every formula references its standard (ASHRAE, NEC, SMACNA, manufacturer P-T tables). Status badges flag when readings are out of range.
• Field-readable design. High-contrast layout that works in direct sunlight and one-handed gloved typing.
• No analytics, no ads, no upsell spam. Free tier is genuinely useful. Pro is genuinely valuable.
• Apple-native. SwiftUI, dark mode, Dynamic Type, iPad split view — built for iPhone and iPad on iOS 17+.

PRICING

HVAC Pro is $19.99 / year (with a 3-day free trial) or $4.99 / month. One subscription unlocks every Pro calculator, PlateScan, unlimited saved jobs, and PDF export. Cancel anytime in Settings > Apple ID > Subscriptions. Auto-renews until canceled.

— Built by PLAYRIOT LLC. Calculations are estimates intended for trade professional use. For code-compliant Manual J load submittals, use ACCA-certified software.

Support: 
Privacy: 
Terms: 
Terms of Use (EULA): 

## HVAC Pro Calculator Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/47/e8/3a/47e83a86-a215-2e4f-3791-c1066f9a2cae/02-platescan.png/1320x2868.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/97/69/d4/9769d4b2-1353-986e-033c-36ea6419cfca/01-hero.png/1320x2868.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ea/84/06/ea840654-f0c9-42d2-5b32-14e81675ec25/02-refrigerant.png/1320x2868.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f4/bb/87/f4bb8722-5991-3283-52f3-94f4a4419733/03-btu.png/1320x2868.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/2b/38/5e/2b385e69-c508-747c-cf9b-87e6db0e9010/04-voltage.png/1320x2868.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/7f/7b/57/7f7b57df-2c79-1d7c-b3cc-5cccf90c9710/05-jobs.png/1320x2868.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/10/8b/6e/108b6eaf-fc60-fdb6-1fab-9c3bd67973e3/06-pro.png/1320x2868.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/89/ae/b8/89aeb8d2-2eb2-1874-1819-cfe780a76c49/07-trust.png/1320x2868.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/72/74/b2/7274b28d-7104-ffae-1e19-d63a8573c6df/08-help.png/1320x2868.png)

## HVAC Pro Calculator Rating Breakdown in United States
- 5 stars: 1 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)


## HVAC Pro Calculator In-App Purchases
| Item | Price |
|------|-------|
| HVAC Pro Yearly | $19.99 |
| HVAC Pro Monthly | $4.99 |



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## HVAC Pro Calculator Available In
- [United States](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/united-states)
- [Bulgaria](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/bulgaria)
- [Switzerland](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/switzerland)
- [China](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/china)
- [Colombia](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/colombia)
- [Cyprus](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/cyprus)
- [Denmark](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/denmark)
- [Estonia](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/estonia)
- [Egypt](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/egypt)
- [Argentina](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/argentina)
- [Greece](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/greece)
- [Croatia](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/croatia)
- [Hungary](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/hungary)
- [Lithuania](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/lithuania)
- [Mexico](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/mexico)
- [Nigeria](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/nigeria)
- [Poland](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/poland)
- [Türkiye](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/turkey)
- [Grenada](https://apptail.io/app/hvac-pro-calculator-nec-p-t-DJGz/grenada)

---

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