The Pocket Engineer - Wallet Ruler and Conversion Reference
5.0 / 5.0
(30)30 total reviews
Always be ready to measure, calculate and fix anything with The Pocket Engineer.
Packed with features in laser-cut stainless steel the size of your credit card:
26 unit conversions, 7 equations, and 10 physical constants to save you time looking up references in mechanical, civil, electrical, industrial, nuclear, and materials engineering.
Doubles as a wallet ruler and protractor.
Photogrammetric ruler to calibrate length and tilt in images when used as a scale in field or lab work.
Pipe inner diameter measurement from 0.25"-1.25" and machinist scale with 10-mil resolution.
Shipping times & rates
Free shipping in the USA! Typically arrives in 5-15 business days. Standard shipping (with tracking) available for about $3 (3-7 day). We ship to Canada, the UK, EU and many other countries around the world. Go to checkout to see the rates and availability for your region.
Still not sure if you want one? We offer free returns of this product within 30 days of purchase if you're not happy with it! Grab it today with no risk and feel the difference yourself.
Bulk classroom discounts and group/logo customization are available by request. Bulk pricing starts at 10 cards and custom logos start at 100 cards.
Ready when you are
This thing is great! It’s nice and sturdy, well made, and being in forensic engineering means always having an awesome product available and small enough to go anywhere! But certainly doesn’t skimp on usefulness. Definitely gonna recommend to more people. Awesome idea and product.
Wesley B. on Amazon
A textbook in your pocket
My brother is in the middle of a college degree in engineering and asked for a "cool ruler" for Christmas. I got him the Pocket Engineer and he said it was his favorite gift this year! He loves that he can take it to class and to his internship and have so much info on hand. It's sturdy and well-made and the printing is very clear!
Small but mighty
I bought 2 of these for high school graduates getting ready to enter college in engineering. Even though I bought these as little bonus gifts to the main presents, the students were most excited about these!
Save big by bundling our favorite engineering gifts together! Engineers suffer through incredibly demanding coursework and it doesn't get any easier when they land a job! Show them your support with a thoughtful one-of-a-kind gift pack for engineers.
The Pocket Engineer is a huge homework helper that engineers keep in their wallets on the job site. The word magnets are a fun way to be creative and rant to your co-workers on the office fridge or whiteboard. We can ship quickly for upcoming graduations, birthdays, or holidays.
Items will arrive in a single mailer. Unfortunately, we can't offer gift wrapping options.