Free Online Calculators – Math & Finance Tools
Eqsy.io offers a wide range of free online calculators for everyday math and finance.
From percentage and volume to scientific and triangle calculations, our tools help students, professionals, and everyday users get fast and accurate results.
📊 Percentage Calculator
Easily calculate percentages and percentage changes.
📐 Volume Calculator
Calculate the volume of cubes, cylinders, and spheres.
📏 Area Calculator
Find the area of rectangles, circles, and triangles.
📐 Triangle Calculator
Solve any triangle to find sides, angles, area, and perimeter. Works with SSS, SAS, ASA/AAS, and right triangle inputs.
🧮 n-th Root Calculator
Instantly calculate square, cube, or any n-th root of real or complex numbers.
🧮 Basic Calculator
An online calculator for simple math operations.
⚛️ Scientific Calculator
Perform advanced math and graph equations. Includes trigonometric, logarithmic, and power functions.
🚧 Coming Soon
New tool in development
🚧 Coming Soon
More calculators coming soon
Why Use Our Free Calculators?
Fast and accurate results
100% free, no signup
Works on mobile and desktop
Trusted formulas and updated regularly
Q1: Are these calculators free to use?
Yes, all our calculators are 100% free and require no signup.
Q2: Can I use them on my phone?
Yes, all calculators are fully responsive and work on both mobile and desktop.
Q3: How accurate are the results?
We use trusted formulas and update them regularly to ensure accuracy.
Q4: Do you store my data?
No, we don’t collect or store any personal information when you use our calculators.
### About Our Math & Finance Calculators
Our free online calculators help you save time and avoid mistakes in everyday calculations.
From quick percentage changes and loan estimates to detailed savings and currency conversions,
these tools are designed to be simple, fast, and accurate.
Whether you are a student, a professional, or just someone who needs quick answers,
Eqsy.io provides reliable calculators you can use anytime, anywhere.
© 2025 Eqsy.io – Free Online Tools