Amazon has Calculated Industries 8503-TM12 ProjectCalc Classic with 12-Foot Tape Measure Model and Do-It-Yourself Project Calculator for $9.70 + super saver eligible.
Technical Details
* For: Do-It-Yourselfers, Woodworkers, Hobbyists, Decorators and Gardners
* Enter feet-inch-fractions without changing to decimals
* Use it to estimate quantities and costs for paint, concrete, tile, wallpaper and carpet
* Convert between all standard math dimensions
* Includes: Easy-to-Follow User's Guide and 360° Hinged Hard Cover Door and 12-Foot Tape Measure
Calculated Industries 8503-TM12 ProjectCalc Classic $9.70 eFSSS 
