---
product_id: 63878322
title: "Air Duct Sizing Calculator"
brand: "hvaccharts"
price: "860868₫"
currency: VND
in_stock: true
url: https://www.desertcart.vn/products/63878322-air-duct-sizing-calculator
store_origin: VN
region: Vietnam
---

# Dual-sided precision scales Comprehensive HVAC reference data Durable, water-resistant build Air Duct Sizing Calculator

**Brand:** hvaccharts
**Price:** 860868₫
**Availability:** ✅ In Stock

## Summary

> 📏 Calculate like a pro, duct with confidence!

## Quick Answers

- **What is this?** Air Duct Sizing Calculator by hvaccharts
- **How much does it cost?** 860868₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/63878322-air-duct-sizing-calculator)

## Best For

- hvaccharts enthusiasts

## Why This Product

- Trusted hvaccharts brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Power Tool:** Slim 4" x 8.5" size fits perfectly in your tool belt or bag—ready whenever you are.
- • **Master Your Airflow:** Supports equal friction and velocity reduction methods to optimize supply and return duct systems.
- • **Built to Last on the Job:** Crafted from thick, water-resistant paper with reinforced edges and rivets to withstand daily wear.
- • **All-in-One HVAC Companion:** Includes velocity recommendations, sheet metal gauges, and pressure drop charts for instant reference.
- • **Precision at Your Fingertips:** Dual-sided design with duct sizing scales and essential HVAC charts for flawless calculations.

## Overview

The Air Duct Sizing Calculator is a compact, dual-sided HVAC tool designed for precise duct system measurements using equal friction or velocity reduction methods. Built with durable, water-resistant materials and reinforced edges, it offers essential reference charts and formulas, making it an indispensable portable companion for HVAC professionals.

## Description

Air Duct Sizing Calculator

## Features

- Versatile HVAC Calculator: Sizes supply and return duct systems using equal friction or velocity reduction design method
- Dual-Sided Design: Front features scales for various duct sizes and properties, while the back offers fitting equivalents, pressure drop charts, and HVAC formulas
- Durable Construction: Made of thick, water-resistant paper stock with glued edges and corner rivets for long-lasting use
- Practical Reference Guide: Includes recommended duct velocities, gauges for sheet metal, and other essential HVAC data
- Compact and Portable: Measures 4 inches high and 8.5 inches wide, fitting easily into tool belts or bags for on-the-go use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006XIQ7DM |
| Best Sellers Rank | #57,105 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,872 in HVAC |
| Customer Reviews | 4.6 4.6 out of 5 stars (937) |
| Date First Available | January 14, 2012 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.95 ounces |
| Item model number | 9W-7LPQ-JTV2 |
| Manufacturer | DEFLECTAIR |
| Product Dimensions | 4 x 8.5 x 0.04 inches |

## Product Details

- **Brand:** HVACCHARTS
- **Calculator Type:** Air Duct Sizing
- **Material:** Other
- **Power Source:** Battery Powered
- **Screen Size:** 4 Inches

## Images

![Air Duct Sizing Calculator - Image 1](https://m.media-amazon.com/images/I/915Uh0HFT8L.jpg)

## Questions & Answers

**Q: Does the problem with sticker placement still exist?**
A: No.  Product identification stickers are easy peel removable labels.  Labels can be removed with little effort.

**Q: Would this be the appropriate calculator for flex ducting? It says round but I don't know if that's metal or flex.**
A: This calculator is not for flex ducting.  Flex ducting has a different friction loss and varies by manufacturer so there is no universal calculator that works for all flex ducting.

## Frequently Bought Together

- Air Duct Sizing Calculator
- REVISED AND UPDATED! HVAC Tables, Equations & Rules of Thumb Quick-Card
- Trane TD1 Ductulator with Sleeve, Duct Sizing Calculator

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**Shop now:** [https://www.desertcart.vn/products/63878322-air-duct-sizing-calculator](https://www.desertcart.vn/products/63878322-air-duct-sizing-calculator)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-15*