# SparkFun PCB Ruler - 12 Inch

**Type:** Product page · **SKU:** TOL-15295 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/sparkfun-pcb-ruler-12-inch.html ([markdown](https://core-electronics.com.au/sparkfun-pcb-ruler-12-inch.html.md))

One Ruler to Rule them All. A PCB ruler with useful conversions and information...

## Pricing

- **Price:** $19.90 (inc GST) — $18.09 AUD, exc GST
- **Quantity discounts:** 5+ $17.55 (exc GST) · 25+ $17.18 (exc GST) · 100+ $16.46 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Sep 18 and Sep 24.

## Description

One ruler to rule them all. This is a basic 12 inch ruler, but made from a PCB. Sparkfun have included a lots of useful information on each side of the ruler that you might use on a daily basis including Wire Gauge holes, transistor diagrams, common fractions, Roman numerals, and metric to imperial conversions. Most importantly, the ruler provides you with a straight line and centimeter markings one side and inch markings on the other side.

You'll also find a small protractor in the middle for all your angle measurement needs. While we figured you have a fairly good idea how to use a ruler we do have a tutorial to explain all the information you'll see!

 [Get Started with the How to use a Ruler Guide](https://learn.sparkfun.com/tutorials/how-to-use-a-ruler)- 12 inch PCB ruler with markings down to 0.05" or 1/32"
- 30.48 cm PCB ruler with markings down to 0.1mm
- Electrical Equations such as Ohm's Law and Parallel Resistors
- Keyboard Alt Codes
- Color Wavelengths
- Protractor
- Metric Prefix Summary Chart
- Metric conversions
- Morse Code
- Transistor Diagrams
- Roman Numerals
- Fraction Summary
- Wire Guage Chart
- Tap and Drill Chart
- Size: 12"x 1.5"
 
- [How to Use a Ruler](https://learn.sparkfun.com/tutorials/how-to-use-a-ruler)
- [GitHub Hardware Repo](https://github.com/sparkfun/SparkFun_PCB_Ruler)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_924.jpg)