Calculators & Converters
    Calculate :

    Side :

    Area :

    1. Insert this widget code anywhere inside the body tag
    2. Use the code as it is for proper working.

    Octagon (Area, Perimeter & Side) Calculator's octagon calculator is an online basic geometry tool to calculate area, perimeter & side of a octagonal shaped polygon, in both US customary & metric (SI) units.

    Steps to Find Area of a Octagon

    The step by step workout for how to find what is the area of a octagon. Students may use this octagon calculator to generate work with steps for any other similar input values.Workout :
    step1 Address the formula, input parameters and values
    side = 10 in

    step 2 Find Area of Octagon using side value
    Area A = 2 (1 + 2 ) s²
    = 2 x (1 + 2 ) x (10)² in²
    = 2 x (1 + 1.4142 ) x 100 in²
    = 2 x 2.4142 x 100 in²
    Area A = 482.8427 in²

    Octagon & Formulas

    Octagon is a polygon with eight straight sides and angles, a geometric shape on the two dimensional plane. K-12 students may refer the below formulas to know what are all the input parameters are being used to find the area, perimeter & side of octagon.

    octagon area, perimeter & side formula
    Octagon formulas to calculate area, perimeter & side

    Problems on Finding the Area & Perimeter of Octagon

    Below are the practice problems for grade school students, on finding what is the area, side and perimeter of a octagon. By click on the corresponding problem shows the step-by-step calculation or work with steps for how to find such values of octagon mathematically. For any other similar values, use this octagon calculator to verify the results. Calculators