# EngiTools Pro

> HVAC, Piping & Unit Calc

Canonical page: [https://chrome-stats.com/d/id6753354185](https://chrome-stats.com/d/id6753354185)

## Overview

- **ID:** `id6753354185`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Kui Yan Marc YU
- **Category:** Reference
- **Version:** 1.0.8
- **Last updated:** 2026-06-22
- **First published:** 2025-10-09
- **Size:** 27 MB
- **Data as of:** 2026-09-21
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/engitools-pro/id6753354185)
- **Website:** [https://engitoolspro.web.app](https://engitoolspro.web.app/)
- **Privacy policy:** [https://same-failing-c95.notion.site/Disclaimer-265ed067af9f802282aae23ec3f00c63?pvs=74](https://same-failing-c95.notion.site/Disclaimer-265ed067af9f802282aae23ec3f00c63?pvs=74)

## Description

The ultimate pocket reference for HVAC, piping, fasteners, and unit conversion

EngiTools Pro - The Ultimate Engineering Pocket Reference

Stop wasting time searching through heavy handbooks, scattered PDFs, or unreliable websites. EngiTools Pro is the essential, all-in-one productivity app designed specifically for Mechanical, HVAC, Piping, and Civil Engineers.

Whether you are on-site, in a meeting, or drafting in the office, get instant access to precise engineering data, dimensional references, and complex calculations right in your pocket.

CORE FEATURES:

Comprehensive Unit Converter

• Convert intuitively across a massive database of engineering units.

• Supports scientific notation and smart formatting for high-precision results.

• Includes categories for Length, Area, Volume, Mass, Pressure, Energy, Power, and more.

HVAC & Psychrometrics

• Psychrometric Chart Calculator: Instantly calculate Enthalpy, Dew Point, Humidity Ratio (w), Absolute Humidity, and Density by inputting Dry Bulb and RH/WB.

• Fresh Air Requirement (ASHRAE 62.1-2022): Look up required outdoor air rates (L/s·person, cfm/ft²) across various room types instantly. Supports both SI and IP units.

Piping & Flange Reference

• Pipe Thickness & Weight: Quickly determine Outer/Inner Diameter, Wall Thickness, and Weight per meter/foot across different nominal sizes (DN/NPS) and schedules.

• Flange Dimensions (BS 1092-1): Comprehensive lookup for Weld-neck flanges (Raised face). Get exact PCD, bolt hole diameters, neck dimensions, and bolting requirements for various Pressure Ratings (PN).

Fastener Dimensions (Bolt, Nut, Washer)

• Accurate geometric data for Hexagon Head Bolts, Screws, Nuts, and Flat Washers.

• Look up pitch, width across flats (s), width across corners (e), head height (k), and thread lengths based on metric sizes.

WHY CHOOSE ENGITOOLS PRO?

• Blazing Fast & Offline: No internet connection required. Get your data instantly, even in deep basements or remote sites.

• Built for Professionals: Data is sourced from recognized industry standards (ASHRAE, BS, etc.).

• Sleek UI: Optimized for both Light and Dark modes to reduce eye strain during long working hours. Auto-scales perfectly to your screen size.

• No Interruptions: A clean, distraction-free environment tailored for engineering workflows.

Upgrade your engineering toolkit today. Work smarter, calculate faster, and design with confidence using EngiTools Pro!

(Note: EngiTools Pro is intended for general reference. Users should always verify calculations with official standards for critical engineering designs.)

## Rankings

- #2,121,110 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6753354185)