Translate modern calendar dates into classical Roman numeral notation and decode Roman inscriptions.
RIS Citation Generator | Export .ris Files for Reference Managers
Generate and download standard .ris reference files for Zotero, Mendeley, and EndNote managers.
Research Word Count Calculator | Pages, Reading Time & Academic Density
Convert research paper word counts into printed pages, reading duration, and conference speech lengths.
Required Grade Calculator | Minimum Score Needed to Pass or Get an A
Determine the minimum score needed on upcoming tests, essays, or midterms to achieve your desired grade.
Reading Comprehension Grade Level Calculator – Flesch-Kincaid & Gunning Fog
Compute readability formulas including Flesch-Kincaid Grade Level, Flesch Reading Ease, Gunning Fog, and SMOG readability index.
Percentage to GPA Converter | Convert Percent Marks to 4.0 Scale
Convert academic percentage marks (0-100%) to 4.0, 5.0 weighted, and 10.0 CGPA scales.
MLA Citation Formatter | 9th Edition Works Cited & In-Text Generator
Format MLA 9th Edition Works Cited entries and parenthetical author-page citations for humanities.
ISBN-10 to ISBN-13 Converter | EAN-13 Bookland Prefix & Check Digit
Convert legacy 10-digit ISBNs to modern 13-digit EAN format with 978 prefix and recalculated check digits.
ISBN Validator | Verify 10-Digit & 13-Digit Book Checksums
Verify checksum validity for 10-digit (Mod 11) and 13-digit (Mod 10) International Standard Book Numbers.
Flashcard Quiz Maker – Spaced Repetition Study Engine & Flashcard Deck
Create interactive digital flashcard decks, study with Leitner spaced repetition boxes, test active recall, shuffle cards, and import/export flashcard decks as CSV/JSON.