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Textile Moisture Vapor Transmission Rate (MVTR / WVTR Breathability) Calculator

Easily calculate and compute textile moisture vapor transmission rate (mvtr / wvtr breathability) calculator with accurate equations, live formulas, and expert guidance.

Standard ASTM E96 inverted/upright cup area.

Calculated Result
1,600 g/m²/24hr

Breathability (MVTR)

Breathability (MVTR)

1,600 g/m²/24hr

Moisture Vapor Transmission Rate G Per M2 Day

1600

Hourly Transmission Rate G Per M2 Hr

66.7

Membrane Performance Class

Low Breathability / Polyurethane Coated Rainwear

1,600 — g/m²/24hr

Calculation Breakdown

  1. Applied FormulaMeasures moisture vapor transmission rate (MVTR) through breathable waterproof microporous membranes and technical activewear fabrics per ASTM E96.\text{MVTR} = \frac{\Delta m}{A \cdot t} \times 24

Fabric Breathability MVTR Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.04008001.2k1.6kBreathability (MVTR)

What Is the Textile Moisture Vapor Transmission Rate (MVTR / WVTR Breathability) Calculator?

This tool computes textile moisture vapor transmission rate (mvtr / wvtr breathability) calculator with high precision arithmetic.

How Does the Textile Moisture Vapor Transmission Rate (MVTR / WVTR Breathability) Calculator Work?

Measures moisture vapor transmission rate (MVTR) through breathable waterproof microporous membranes and technical activewear fabrics per ASTM E96.

Textile Moisture Vapor Transmission Rate (MVTR / WVTR Breathability) Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

MVTR=ΔmA⋅t×24\text{MVTR} = \frac{\Delta m}{A \cdot t} \times 24

Measures moisture vapor transmission rate (MVTR) through breathable waterproof microporous membranes and technical activewear fabrics per ASTM E96.

How to Use the Textile Moisture Vapor Transmission Rate (MVTR / WVTR Breathability) Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Textile Moisture Vapor Transmission Rate (MVTR / WVTR Breathability) Calculator Example

Input Values:

cupMassLossGrams:4.8
testDurationHours:24
testCupExposedAreaCm2:30
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required g/m²/24hr.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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