For guidance only
The calculators and guides give general estimates. Your official grade is set by your teacher and school, whose weights, rounding and scales can differ from the ones used here.
Accuracy
We test every calculation, but we don't guarantee the site is free of errors. If you find a problem, email hello@redpengrade.com.
Liability
To the extent the law allows, redpengrade and its owner aren't liable for decisions made using the site.
Content
The text, calculators and diagrams are original work. You're welcome to link to any page, and teachers may print the grading charts for classroom use.
Changes
We may update these terms. The date at the top shows when they last changed.