Spache Readability Calculator
Calculate the Spache Readability score for grades 1-4 reading materials.
Spache Analysis
words, sentences, unfamiliar words
Spache Formula
Spache = 0.121(ASL) + 0.082(PDW) + 0.659
ASL = Average Sentence Length
PDW = Percentage of Difficult/Unfamiliar Words
When to Use Spache
The Spache formula is designed for primary grade materials (grades 1-4). For higher grade levels, use Dale-Chall or other readability formulas.
Spache Score
0
N/A
Target Audience
N/A
About Spache Readability
Developed by George Spache in 1953, this formula uses a list of 1,000+ familiar words that primary grade students typically know. Words outside this list are considered unfamiliar and contribute to higher difficulty scores.
Help us improve!
How would you rate the Spache Readability Calculator?
Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
Formula Source: Standard Mathematical References
by Various