Pi-Tape ®

Shop Precision Measuring Tapes by Size

Quickly find the right diameter tape for your application—Small, Medium, Large, and Extra Large options available.

Since 1944

Choose the Right Diameter Range

Pi Tape precision measuring tapes are designed for every size of cylindrical component. Selecting the correct diameter range ensures accurate, repeatable measurements and makes it easier to find the tape that fits your application.

Small Diameter

0 – 12″ (0 mm – 305 mm)

  • Perfect for small pipes, rollers, and compact machinery components.

     

  • Ideal for lab equipment, small-bore inspection, and precision assemblies.

Medium Diameter

12 – 36″ (305 mm – 915 mm)

  • Designed for standard industrial pipes, shafts, and medium-sized machinery.

  • Commonly used in manufacturing, aerospace components, and quality control.

Large Diameter

36 – 72″ (915 mm – 1828 mm)

  • Suitable for large pipes, tanks, and heavy industrial equipment.

  • Provides reliable measurements for oil, gas, and pipeline applications.

X-Large Diameter

72″+ (1828 mm +)

  • For oversized components, field measurement, and specialized industrial applications.

  • Supports applications in aerospace, defense, and large-scale manufacturing.
Shop By Size
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Accurately measure outside diameters with reliable, high-precision tapes designed for consistent, repeatable results.

Price range: $140.00 through $635.00

Accurate, reliable tapes for measuring inside diameters with consistent, repeatable results in any application.

Price range: $170.00 through $605.00

Tailored for exact measurements, these precision tapes deliver accurate and repeatable inside diameter readings for any application.

Price range: $246.00 through $664.00

Accurately measure O-ring inside diameters with precision tapes designed for consistent and reliable results.

Price range: $218.00 through $654.00

Custom-built for accuracy, these precision tapes provide reliable inside diameter measurements for O-rings with consistent, repeatable results.

Price range: $310.00 through $712.00

Accurate and reliable outside circumference measurements with precision tapes designed for consistent, repeatable results.

Price range: $140.00 through $488.00

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80 Years of American Innovation

Trusted by Industry Leaders

Precision Measuring Solutions for Every Application

When Precision Isn’t Negotiable

Built for speed, accuracy, and consistency, Pi Tape tools deliver the trusted measurements professionals rely on every day. Discover OD, ID, O-ring, and digital solutions crafted for critical applications.

Outside Diameter Tapes

Accurately measure outside diameters with reliable, high-precision tapes built for consistent, repeatable results.

O-Ring Tapes

Specialized design for soft-walled parts. Prevents compression errors when measuring O-rings, seals, and flexible components

Linear Rules

Precision linear measuring tools for reliable, repeatable results.

Inside Diameter Tapes

Precision internal measurement for pipes, cylinders, and bores. Designed for accurate readings in confined spaces.

Digital Tapes

Easy-to-read digital displays with instant metric-to-imperial conversion. Ideal for fast-paced production environments.

Custom Made Tapes

Tailored for your exact measurement needs, these tapes deliver accurate, repeatable results for inside, outside, and linear measurements in any application.

Circumference Tapes

Accurate circumference measurement for pipes, tubes, and round parts.

Certified Precision. Proven Worldwide.

Precision Steel Engineered for Accuracy

Accuracy starts with the material

Pi Tape measuring tapes are manufactured using carefully selected steel alloys that provide long-term dimensional stability, resistance to stretch, and consistent performance in demanding industrial environments.

1095 Spring Steel

The industry benchmark for precision measurement. This high-carbon spring steel offers excellent tensile strength and minimal thermal expansion, helping maintain accuracy even with temperature changes. Its long-term stability is proven by Pi Tape products that remain within tolerance decades after manufacture.

716 Stainless Steel

Designed for environments where corrosion resistance is critical. This stainless steel option delivers reliable precision while protecting against rust and oxidation, making it ideal for harsh, outdoor, or chemical-exposed applications. Commonly used in digital measurement solutions.

Blue Easy to Read

Built on the same 1095 spring steel foundation, this option adds a durable blue finish for improved readability in low-light or high-glare conditions—without compromising accuracy.

All Pi Tape steels are selected to minimize expansion, resist deformation, and support ISO/IEC 17025-traceable calibration, ensuring dependable measurements in mission-critical applications.

Global Distribution. Local Support.

Find an Authorized Pi Tape Distributor Near You

Pi Tape precision measuring tapes are available worldwide through a trusted network of authorized distributors. Our global distribution partners ensure fast access to calibrated tools, local expertise, and responsive customer support—wherever precision measurement is required.