Skip to main content

Convert Pounds per Inch to Tex

Instantly convert Pounds per Inch (lb/in) to Tex (tex) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Formula: lb/in to texmultiply by 1.7858e+7

Reference Table

Pounds per Inch (lb/in)Tex (tex)
117858000
589290000
10178580000
25446450000
50892900000
1001.785800e+9

How to Convert Pounds per Inch to Tex

Formula

To convert Pounds per Inch (lb/in) to Tex (tex): multiply by 1.7858e+7

Step-by-Step

  1. Start with your value in Pounds per Inch (lb/in).
  2. Multiply by 1.7858e+7 to perform the conversion.
  3. The result is your value expressed in Tex (tex).

Conversion Factor

1 lb/in = 17858000 tex

Reverse Factor

1 tex = 5.599731e-8 lb/in

Worked Example

Convert 25 Pounds per Inch to Tex: 25 lb/in = 446450000 tex

About Pound per Inch (lb/in)

An imperial linear-density unit equal to exactly 12 × lb/ft (≈ 17.858 kg/m per NIST SP 811). lb/in is used occasionally in US engineering for small-cross-section components where lb/ft would produce small decimal values: small US-manufactured precision-machined wire (round bar stock from McMaster-Carr / MSC Industrial Supply lists weight-per-inch for small diameters), specialty tooling (broaches, taps, drills, gun-barrel stock), small structural sections in MIL-SPEC aerospace and defense applications (MIL-STD-1539 microelectronics-package mass-spec sheets, occasional small-airframe spar-cap weight-per-inch in legacy aircraft drawings), and some pre-1980s machine-shop reference tables. 1 lb/in = 12 lb/ft ≈ 17.86 kg/m. Much less common than lb/ft in everyday US structural engineering but persists in specialty tooling, fastener-stock, and small-arms ammunition projectile-weight specifications.

About Tex (tex)

A textile-industry linear-density unit equal to exactly grams per 1,000 meters of fiber or yarn (= 10⁻⁶ kg/m = 1 mg/m). Tex is the ISO-standard fiber-fineness unit worldwide per ISO 2060 'Yarn from Packages — Determination of Linear Density (Mass per Unit Length)'. Used universally in: tire-cord industry per ASTM D885 (polyester tire cord 1,100-1,650 tex; rayon cord 1,840-2,750 tex; aramid/Kevlar cord 1,580-2,840 tex; steel-wire tire-belt 4,400 tex), industrial belting and conveyor-belt reinforcement fabrics, carpet and rug yarn (Berber loop-pile typical 2,000-5,000 tex; nylon BCF 1,400 tex), sewing-thread and embroidery-thread specifications, polypropylene woven slings for material handling, and continuous-filament-yarn (CFY) manufacturing. Direct measurement principle: weigh 1,000 m of the fiber under standardized 20 °C / 65% RH atmosphere per ISO 139, heavier fiber = higher tex. Convert tex to g/km (numerically identical); to denier by multiplying by 9; to kg/m by dividing by 10⁶.

Quick Facts

  • 1 Pound per Inch equals 17858000 Tex
  • 1 Tex equals 5.599731e-8 Pounds per Inch
  • Pound per Inch is a unit of linear density
  • Tex is a unit of linear density
  • This conversion is commonly used in textile manufacturing, cable engineering, and structural analysis
  • The Pound per Inch belongs to the imperial system

Common Pound per Inch to Tex Conversions

Pounds per Inch (lb/in)Tex (tex)
0.01178580
0.11785800
0.254464500
0.58929000
117858000
235716000
353574000
589290000
10178580000
15267870000
20357160000
25446450000
50892900000
751.339350e+9
1001.785800e+9
2504.464500e+9
5008.929000e+9
10001.785800e+10
50008.929000e+10
100001.785800e+11

Understanding Pounds per Inch

The Pound per Inch (symbol: lb/in) is a unit of linear density. An imperial linear-density unit equal to exactly 12 × lb/ft (≈ 17.858 kg/m per NIST SP 811). lb/in is used occasionally in US engineering for small-cross-section components where lb/ft would produce small decimal values: small US-manufactured precision-machined wire (round bar stock from McMaster-Carr / MSC Industrial Supply lists weight-per-inch for small diameters), specialty tooling (broaches, taps, drills, gun-barrel stock), small structural sections in MIL-SPEC aerospace and defense applications (MIL-STD-1539 microelectronics-package mass-spec sheets, occasional small-airframe spar-cap weight-per-inch in legacy aircraft drawings), and some pre-1980s machine-shop reference tables. 1 lb/in = 12 lb/ft ≈ 17.86 kg/m. Much less common than lb/ft in everyday US structural engineering but persists in specialty tooling, fastener-stock, and small-arms ammunition projectile-weight specifications.

It belongs to the imperial measurement system.

Pounds per Inch are commonly used in textile manufacturing, cable engineering, and structural analysis.

Understanding Tex

The Tex (symbol: tex) is a unit of linear density. A textile-industry linear-density unit equal to exactly grams per 1,000 meters of fiber or yarn (= 10⁻⁶ kg/m = 1 mg/m). Tex is the ISO-standard fiber-fineness unit worldwide per ISO 2060 'Yarn from Packages — Determination of Linear Density (Mass per Unit Length)'. Used universally in: tire-cord industry per ASTM D885 (polyester tire cord 1,100-1,650 tex; rayon cord 1,840-2,750 tex; aramid/Kevlar cord 1,580-2,840 tex; steel-wire tire-belt 4,400 tex), industrial belting and conveyor-belt reinforcement fabrics, carpet and rug yarn (Berber loop-pile typical 2,000-5,000 tex; nylon BCF 1,400 tex), sewing-thread and embroidery-thread specifications, polypropylene woven slings for material handling, and continuous-filament-yarn (CFY) manufacturing. Direct measurement principle: weigh 1,000 m of the fiber under standardized 20 °C / 65% RH atmosphere per ISO 139, heavier fiber = higher tex. Convert tex to g/km (numerically identical); to denier by multiplying by 9; to kg/m by dividing by 10⁶.

Tex are commonly used in textile manufacturing, cable engineering, and structural analysis.

Why Convert Pounds per Inch to Tex?

Converting between Pounds per Inch and Tex is a frequent requirement for engineers, scientists, and students working with linear density values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate linear density conversion is essential.

Frequently Asked Questions

How do I convert Pounds per Inch to Tex?

An imperial linear-density unit equal to exactly 12 × lb/ft (≈ 17. To convert Pounds per Inch to Tex, multiply by 1.7858e+7. For example, 25 lb/in equals 446450000 tex.

How many Tex are in 1 Pound per Inch?

There are 17858000 Tex in 1 Pound per Inch.

How many Pounds per Inch are in 1 Tex?

There are 5.599731e-8 Pounds per Inch in 1 Tex.

What is the formula for Pound per Inch to Tex conversion?

The formula is: multiply by 1.7858e+7. This means 1 lb/in = 17858000 tex.

Is a Pound per Inch bigger than a Tex?

No. One Pound per Inch is smaller than one Tex because 1 lb/in equals 17858000 tex, which is greater than 1.

When do you need to convert between Pounds per Inch and Tex?

A textile-industry linear-density unit equal to exactly grams per 1,000 meters of fiber or yarn (= 10⁻⁶ kg/m = 1 mg/m). Pound per Inch and Tex are both linear density units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.

More Linear Density Conversions

Related Tools