The Smarter Calculator for Students
From homework to exams — type your calculations in plain text and get instant answers. No more hunting for buttons on a tiny calculator.
Built for students
Variables & References
Define variables like `x = 5` and reference them in later calculations. Perfect for algebra and physics problems.
Unit Conversions
Convert between metric and imperial units instantly. Type `100 cm to inches` and get the answer.
Percentage Calculations
Natural percentage expressions like `80 + 15%` or `what is 30% of 200`. Great for statistics and finance classes.
Tabs for Each Subject
Organize calculations by subject — one tab for Physics, another for Economics, another for Chemistry.
See It in Action
GPA Calculation
credits = 4
grade = 3.7
points = credits * gradePhysics Problem
mass = 10
acceleration = 9.8
force = mass * accelerationUnit Conversion
5 miles to km
100 fahrenheit to celsiusStart calculating smarter, students.
Notes Calculator is free to start, runs in your browser, and works on every desktop. Upgrade later for sync and unlimited tabs.
Free forever plan · No credit card · Cross-platform