Free Tools for Students 2026: Calculators, Converters & Study Helpers
Students run into the same math and formatting problems daily: converting units for science class, calculating percentages for a business project, formatting an essay's references, or checking a word count before submission. These free tools for students handle all of it — no signup, no install, no "premium" paywall mid-homework.
Math & calculators
| Tool | Use it for |
|---|---|
| Percentage Calculator | Grades, discounts, statistics homework |
| BMI Calculator | Health & PE class |
| Age Calculator | Exact age for forms and projects |
| Random Number | Probability exercises and experiments |
| Date Difference | Days until exams and deadlines |
Unit & number conversions
| Tool | Use it for |
|---|---|
| Unit Converter | Length, weight, volume, temperature — science class |
| Celsius to Fahrenheit | Temperature problems |
| Roman Numerals | History and classics |
| Number to Words | Writing amounts in words |
| Text to Binary | Computer science basics |
Writing & text helpers
| Tool | Use it for |
|---|---|
| Word Counter | Meeting essay length requirements |
| Case Converter | Formatting titles and headings |
| Text Diff | Spot changes between essay drafts |
| Lorem Ipsum | Design and layout mockups |
Why these work for students
- Free forever — no credit card, no trial that expires mid-semester
- Works on any device — laptop, tablet, school computer
- No signup — useful the second the page loads
- Private — homework stays in your browser, nothing uploaded
Open Percentage Calculator
Frequently Asked Questions
Are these tools really free for students? Yes — unlimited use, no account, no watermark, no limits.
Can I use them on a school computer? Yes — they're browser-based, nothing to install, works on any device with a browser.
Is my homework uploaded? No — everything runs in your browser, so your work stays yours.
Do you offer a student discount on the paid apps? The free tiers cover student use; paid apps like InvoiceForge and BankToCSV start at €10 with lifetime deals available.