Guides
Start from a tool or a blog guide. Everything runs locally — cite ourprivacy pagewhen you need the no-upload promise.
Tools
From the blog
July 15, 2026
Should You Paste Your GPA Into Online Calculators?Grades feel personal. Here is when an online GPA tool is fine — and when you should keep the math on your own device.July 14, 2026
What Grade Do I Need on My Final? A Worked ExampleThe question is algebra, not luck. Here is the exact formula for the score you need on a weighted final, with a full numeric walkthrough.July 12, 2026
Weighted vs Unweighted GPA ExplainedUnweighted GPA caps excellence at 4.0. Weighted GPA rewards harder courses — and confuses anyone comparing transcripts. Here is how each is calculated.July 10, 2026
Compound Interest with Monthly Contributions ExplainedCompound interest alone is incomplete for savers who deposit every month. Here is the model with regular contributions, without pretending it is personalized financial advice.