Perimeter Calculator

Perimeter Calculator - Instantly Calculate Perimeter of Any Shape

The Perimeter Calculator by SiD X Tool helps you calculate the perimeter of various 2D geometric shapes including square, rectangle, triangle, circle, polygon and more. Whether you’re a student, architect, or DIY enthusiast — this tool provides accurate perimeter values in just a click.

✅ Supported Shapes

• ◼️ Square
• ▭ Rectangle
• 🔺 Triangle (Equilateral / Scalene)
• ⚪ Circle (using radius or diameter)
• 🔷 Regular Polygon (with number of sides & side length)
• ➕ Custom shapes (when all side lengths are known)

📐 What is Perimeter?

Perimeter is the total distance around the boundary of a 2D shape. It is calculated by adding the lengths of all sides of a shape. For example:

• 🟦 Square: P = 4 × side
• 🟥 Rectangle: P = 2 × (length + width)
• 🔺 Triangle: P = a + b + c
• ⚪ Circle: P = 2 × π × r (or π × d)

🌟 Why Use This Perimeter Calculator?

• ⚡ Instant perimeter calculation for multiple shapes
• 📊 Works with decimals and whole numbers
• 📱 100% mobile responsive and easy to use
• 🧠 Great for math homework, exams, or engineering work
• 📏 No formulas to remember – we do it for you!

🧮 How to Use the Tool?

1. Select the shape you want to calculate the perimeter for
2. Enter the required dimensions (side, length, radius, etc.)
3. Click “Calculate” to get the perimeter instantly
4. Use “Reset” to clear and calculate again

👨‍🏫 Who Can Use This Tool?

• 🎓 Students – For geometry homework and exam preparation
• 👩‍🏫 Teachers – To demonstrate perimeter concepts in class
• 📐 Engineers & Architects – For planning and layouts
• 🧰 DIY Enthusiasts – For measurements of fencing, flooring, etc.
• 📏 Anyone needing quick and accurate perimeter calculation

🔍 Examples

• Square with side 8 cm → Perimeter = 32 cm
• Rectangle with length 10 m and width 5 m → P = 30 m
• Circle with radius 7 cm → P = 2 × π × 7 ≈ 43.98 cm
• Triangle with sides 6 cm, 8 cm, and 10 cm → P = 24 cm

FAQs – Frequently Asked Questions

• Q: What unit will the perimeter be in?
  A: Same as the unit you enter (cm, m, inch, ft, etc.)
• Q: Can I calculate perimeter of a polygon?
  A: Yes, just enter number of sides and side length.
• Q: Is this tool free to use?
  A: Yes, it’s 100% free and works without any signup.
• Q: Can I use this tool on my mobile device?
  A: Absolutely! It’s fully responsive and touch-friendly.

Conclusion

The Perimeter Calculator from SiD X Tool is your all-in-one solution for quickly and accurately calculating the perimeter of any 2D shape. No more manual formulas or calculator work — just select your shape, enter the numbers, and get the answer. Try it now!