# FieldCalc

> HVAC/R Field Calculator

Canonical page: [https://chrome-stats.com/d/id6787528767](https://chrome-stats.com/d/id6787528767)

## Overview

- **ID:** `id6787528767`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Marwane Tchassama
- **Category:** Utilities
- **Version:** 1.0
- **Last updated:** 2026-07-09
- **First published:** 2026-07-09
- **Size:** 4.64 MB
- **Data as of:** 2026-09-18
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/fieldcalc/id6787528767)
- **Privacy policy:** [https://aquatic-alto-bc9.notion.site/Privacy-Policy-3935ee35e47980de9648fe3923873715](https://aquatic-alto-bc9.notion.site/Privacy-Policy-3935ee35e47980de9648fe3923873715)

## Description

Every daily HVAC calculation in one fast, offline app. PT chart, superheat, subcooling, duct sizing, and sensible load — with instant gauge readouts. No subscription.

FieldCalc is the only calculator an HVAC/R technician needs on a service call. Every daily calculation in one fast, modern, fully offline app — no subscription, no clutter.

CALCULATIONS
- PT Chart — saturation pressure and temperature for R-410A, R-32, R-22, R-134a, and R-407C, with instant analog gauge readout
- Superheat — suction line superheat with flooding warnings
- Subcooling — liquid line subcooling with flash gas warnings
- Duct Sizer — equal-friction round and rectangular duct sizing (ACCA Manual D / ASHRAE), with velocity limit warnings
- Delta-T / Sensible Load — sensible BTU/hr and required airflow, with tonnage and metric conversions

WHY FIELDCALC
- Works 100% offline — no signal needed on the roof or in the basement
- Imperial and metric units on every screen
- Modern, high-contrast interface built for the field
- Fast — open, calculate, done
- No account, no subscription

Built on trusted engineering sources: CoolProp thermodynamic data, ACCA Manual D, and ASHRAE Fundamentals.

FieldCalc is a reference tool for qualified HVAC/R professionals. Always verify results against equipment manufacturer specifications and applicable codes.

## Rankings

- #1,908,007 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6787528767)