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The Pocket Scientist - Wallet Science and Engineering Ruler
The Pocket Scientist - Wallet Science and Engineering Ruler
Pocket Scientist wallet science engineering unit conversion reference card
Pocket Scientist wallet science engineering drawing tool
The Pocket Scientist - Wallet Science and Engineering Ruler
The Pocket Scientist - Wallet Science and Engineering Ruler
The Pocket Scientist - Wallet Science and Engineering Ruler

The Pocket Scientist - Wallet Science and Engineering Ruler

Regular price $11.50 Sale

Carry your passion for science in your pocket.

This laser-cut, laser-engraved, 0.5 mm enamel-coated stainless steel pocket ruler is designed for passionate scientists and engineers who may find themselves needing a quick straight edge, wondering what's next to Technetium in the Periodic Table, pausing to double-check the 6th significant figure in the speed of light or who somehow forgot the 42nd digit of pi.

Keep it in your wallet at all times so you're always ready to do some science!


1) Imperial and metric straight-edge to 85 mm with machinist ruler to 10-mil resolution (254 um)

2) 12 physical constants and 14 fundamental equations from physics and chemistry

3) Temperature, mass and pressure unit conversions plus trigonometry quick-reference

4) Arc and circle drawing protractor tools with 1/8th inch or 5 mm resolution

5) Full periodic table with atomic number reference in each period (row)

6) Phone stand slot (insert another sturdy credit card)

7) 42 digits of Pi (because we could)

8) QR code which links to rotating monthly Easter-eggs on a hidden GLG page

9) Fits any normal credit card or ID holder. TSA compliant and more compact than a standard 6" engineering scale ruler.

Makes for a perfect unique gift for scientists or engineers starting school or at graduation!

Bulk classroom discounts available by request: info@geniuslabgear.com

Free shipping worldwide with a few exceptions (confirmed at checkout). Typically arrives in 5-15 days in the USA, 14-42 days internationally. Free shipping is via postal service without tracking. Expedited shipping available at checkout.

Still not sure if you want one? We offer free returns of this product within 30 days of purchase if you are not happy with it!

Customer Reviews
5.0 Based on 12 Reviews
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Filter Reviews:
Ralf F.

Nice tool! Everyday Carry!

Helene B.
France France
Very good product

I love the Pocket Scientist and use it every day !

United States United States
Good quality

I bought both editions and I think they’re great. I use them for organic chemistry and this saves a ton of time drawing structures. The stencils are helpful and the info printed on the back is a great reference tool. Definitely worth the buy. Shipping was also pretty quick.

Amber K.
United States United States
Great Experience!

These guys are great to work with and the pocket scientist is fantastic! I ordered them as a gift for our robotics seniors and they love them! They were shipped quickly and were a huge hit. Thank you!

Marissa G.
United States United States
Engineer boyfriend loved it

Very cool item, definitely a good gift for anyone in the sciences

Gayle F.
United States United States
Pocket Scientist

Bought for my grandson - not sure if he loves it but said he thought it would be helpful. The customer service at this company is A+ Thank you Derek for all your help. Gayle Fishkin