Rectangle Calculator
Calculate area, perimeter, and diagonal of rectangles instantly.
Length
10.00
Width
6.00
Area
60.00
Perimeter
32.00
Formulas
• Area = 10.00 × 6.00 = 60.00
• Perimeter = 2(10.00 + 6.00) = 32.00
• Diagonal = √(10.00² + 6.00²) = 11.66
Measurements
Area Visualization
FAQs
How do I calculate rectangle area?
Multiply length by width. For a 10×6 rectangle: Area = 10 × 6 = 60 square units.
What is the perimeter formula?
Perimeter = 2(length + width). It's the total distance around the rectangle.
How do I find the diagonal?
Use Pythagorean theorem: diagonal = √(length² + width²). For 10×6: √(100+36) = √136 ≈ 11.66
What's the difference between area and perimeter?
Area is the space inside (square units). Perimeter is the distance around the edge (linear units).
Testimonials
★★★★★
“Perfect for my geometry homework! Quick and easy to use.”
Emma S.
Student
★★★★★
“Use this for woodworking projects. Saves time on calculations!”
Mike R.
Carpenter
★★★★★
“Great teaching tool for explaining area and perimeter concepts.”
Ms. Johnson
Teacher
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