About Dablew Tools
Dablew Tools makes simple, fast calculators that help students track and plan their grades — your GPA, the score you need on a final, and your current weighted class grade. It is built and maintained by Dablew Devs.
What makes us different
- Fast. Pages are lightweight and load almost instantly, even on a phone.
- Private. All calculations run in your browser — we never send your grades to a server or store them.
- Free. No sign-up, no paywall. The site is supported by unobtrusive display ads.
Who writes this
Guides and grading data are written and maintained by the Dablew Toolseditorial team. Every guide carries the date it was last reviewed, and every university policy page carries the date its figures were last checked against the school's own publications, so you can judge how current a page is instead of guessing.
Editorial standards
- Primary sources only.Grading scales and academic policies come from the institution's registrar, catalog, or published student rules — never from another calculator site or a search-result summary. The source links are printed on the page.
- We omit rather than guess. If a figure cannot be confirmed against an official source, that section does not appear. A missing section is honest; an invented one is not.
- We say when there is no single answer. Many universities set honors by class rank rather than a fixed GPA, and there is no universal GPA-to-percentage formula. Where a number would be a guess dressed up as a fact, we explain the actual rule instead.
- Corrections are welcome and credited to the source. Send us a school and a link to its official policy and we will fix the page and update its review date.
Our methodology page sets out the formula behind each calculator and the limits of what these tools can tell you.
A note on accuracy
Our calculators use standard grading formulas and common scales. Schools vary, so always confirm important results against your institution's official policy or registrar.