Top 10 Best crab gauge in 2026

Last Updated - 6/16/2026

🏆Best Choice

Lakei

Lakei Crab Gauge, Measure for Dungeness, Blue Crab, Rock Crab, Lobste 2/Packs

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•2-Pack: Each set includes two crab gauges, ready for any situation.
•Sturdy Material: Crafted from high-quality thick plastic, our crab gauges are robust and stable, ensuring they won't break or deform over time.
•Gender Indicators: Features diagrams for easy identification of male and female crabs.
•Vibrant Colors: Available in orange and green, our crab gauges are bright and easy to spot, reducing the risk of loss.
•Portable Design: Equipped with hanging holes or lanyard slots, making them convenient for carrying, storing, and hanging anywhere.

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$7.99

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AirFly

AirFly Aluminum Lobster and Blue Crab Gauge for California, Maine, MA, NH, RI, CT, MP, AL, FL, GA, MD, VA, NC, SC, LA, TX, Canada, 5", 3 1/4". Designed in San Francisco, USA

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•🦀 Accurate Measurements: Features 2 size slots for precise measuring, 5”, and 3 1/4”, ensuring legal compliance for lobster and crab fishing. Measure the carapace, which is the hard shell on its back, from the back of the eye socket to the end of the body shell.
•🦞 Durable Aluminum Construction: Made from lightweight, high-quality aluminum for maximum corrosion resistance and longevity, perfect for saltwater environments.
•🎣 Portable and Convenient: Compact, lightweight design fits easily in your tackle box, pocket, or gear bag for easy access during your fishing trips.
•✅ Regulation Ready: Designed to meet standard size requirements for recreational and commercial crabbing and lobstering in various regions.
•🌊 Versatile Use: Suitable for measuring Dungeness crabs, rock crabs, lobsters, and other crustaceans, making it an essential tool for any fishing enthusiast.
•🦀 Complies with blue hard crab regulations for Maryland, Virginia, Louisiana, North Carolina, South Carolina, Georgia, Florida, Texas, Alabama. 🦞Complies with lobster regulations for California, Maine, Massachusetts, New Hampshire, Rhode Island, Connecticut, and Canada.
•U.S. Patent Pending – This design is legally protected. Imitation discouraged.

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$9.95

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Danielson

Danielson 200CRGA Crab Gauge Anodized Aluminum, Blue, One Size

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•200CRGA Crab Gauge Anodized Aluminum, Blue, One Size
•200CRGA Crab Gauge Anodized Aluminum, Blue, One Size
•200CRGA Crab Gauge Anodized Aluminum, Blue, One Size
•200CRGA Crab Gauge Anodized Aluminum, Blue, One Size
•200CRGA Crab Gauge Anodized Aluminum, Blue, One Size

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$10.45

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AirFly

AirFly Crab, Lobster Gauge - Measure for Dungeness, Rock Crab, Blue Crab, Lobster. Designed in San Francicso, USA (Concave-Black)

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Designed for measuring Dungeness, Rock Crabs, Blue Crabs in California, Washington, Oregon, Maryland and Florida
•Measure your crab catch in increments of 4", 5", 5 3/4", 6" and 6 1/4"
•Made with 1/4 inch thickness of durable ABS material that does not expand or contract in heat or cold
•High-Quality: Made of High-density, thick plastic material with clear digital identification and measurement method, make your use process more convenient and simple

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$7.95

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Fishernomics

Fishernomics Crab Gauge - Blue & Silver Crab Ruler, Measuring Tool for Dungeness Crab, Rock Crab and Blue Crab with Strong Magnetic Clip Holder and Retractable Coiled Lanyard Carabiner

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•【ACCURACY】- Accurately measure your dungeness crab in increments of 5.75", 6", 6.25", 6.5" and 7"! Get ready to find the ultimate gauge busters.
•【GAUGE COLOR】- Blue body, silver text. Simple.
•【MAGNETIC LANYARD】 - If you don't have one of these yet, make sure to get one. It will keep your gauge with you... or not. Easily pull it apart if your buddy forgot his so he's not dragging you around. Better yet, just get him one too!
•【MAGNETIC LANYARD SPECS】- Magnet strength is up to 4lbs, you can clip any other accessories under 4 lbs. Max length is about 4ft.
•【CATCH MORE CRABS】- I wish! But don't get caught without one of these. The fines aren't worth it.

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$13.95

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Sportfish Products

Sportfish Products Crab Measuring Tool Gauge with Ruler | Multi-Size | *Includes Float**

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Total ruler size measures 7 inches
•Sturdy plastic construction
•Included is a Safety Float to protect the Crab Gauge if it is Dropped in the Water as Protection
•Measure your crab catch in increments of 4", 4 1/2", 5", 5.25", 5 1/2" and 6"
•Fantastic way to conviently measure your catch
•The Ruler and Gauge sides are in easy-to-read increments allowing convient use and the flexibility to measure multiple species of Fish or Crab

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$7.95

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A1FISHER

A1FISHER Dungeness Crab Gauge Measure with Ruler Multi Shrimp Clam Measuring Tool for Oregon, Washington and California 1PCS

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Perfect Measure Tool: A perfect gauge measurement tool for Dungeness and Red Rock crabs, with Both 5-3/4" Measurement (for Red Rock Crab) and The 6-1/4" Measurement (for Dungeness Crab)
•High-Quality: Made of High-density, thick plastic material with clear digital identification and measurement method, it is more convenient and simple when in use.
•Bold Color: The outstanding red color makes it easier to spot and stands out from your other equipment, never misplace this item.
•Convenient: There is a small hole on the top right, which can connect your lanyard. Easy to carry.
•Wide Range of Uses: Accurately Measures the Legal Size of Many Species of Crabs, Clams, and Shrimps, take it with your coming trip.

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$4.99

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PAPAZOO

PAPAZOO 12 Inches Aluminum Crab Gauge & Crab Trap Line Spooler, Winding Storage Crab Traps Line and Measure for Dungeness, Rock Crab, Blue Crab, 4", 5", 5 3/4", 6", 6 1/4" (Pack of 1)

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Material：Made of aluminum alloy, with anodized oxygen and sandblasting process on the surface, for maximum corrosion resistance and longevity, making it ideal for saltwater environments.
•Novelty：The product combines the functionality of a conventional crab measuring tool with the ability to connect to crab traps. This not only reduces the likelihood of losing the product but also provides a convenient way for users to store crab trap lines
•Measure：Measure your crab catch in increments of 4", 5", 5 3/4", 6" and 6 1/4"
•Design：Compact and lightweight design fits easily in your tackle box, pocket, or gear bag, providing quick access during your fishing trips.

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$4.99

$9.99

-50%

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River Guide Supply

River Guide Supply Crab Measure - Gauge for Oregon, Washington & California (Made in USA) (Lime Green)

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Use to measure the legal requirements for OR, WA & CA
•Diagram for distinguishing between Female and Male Crabs
•Hole for Hanging or Lanyard
•This plastic dungeness crab measurer is bright Green making it easier to find
•Made in USA

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$7.49

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Promar

Promar California Crab and Lobster Gauge

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Package length: 12.7 cm
•Package width: 4.318 cm
•Package height: 0.254 cm
•Product Type: FISHING EQUIPMENT

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$9.40

$10.07

-7%

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