# Square Meters Calculator

Calculate the area in square meters and optional cost based on the chosen shape and dimensions.

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This square meters calculator allows you to calculate the area of the following shapes: Square, Rectangle, Circle, Triangle, Trapezoid, Hexagon, and Octagon.

To use it, just select the shape and enter its dimensions. You can also specify the price per 1 m^{2}, so the tool will also calculate the estimated price.

## How to calculate area in Square Meters

### Square

**Square area [m²]** = a [m] * a [m]

**Example:** a = 5m

**Square area** = 5m * 5m

**Square area** = 25m²

### Rectangle

**Rectangle area [m²]** = a [m] * b [m]

**Example:** a = 4m | b = 10m

**Rectangle area** = 4m * 10m

**Rectangle area** = 40m²

### Circle

**Circle area [m²]** = 𝜋 * r²

**Example:** r = 7m

**Circle area** ≈ 3.14 * (7m)²

**Circle area** ≈ 3.14 * 49m²

**Circle area** ≈ 154m²

### Triangle

**Triangle area [m²]** = (a + b + c) / 2

**Example:** a = 3m | b = 4m | c = 5m

**Triangle area** = (3m + 4m + 5m) / 2

**Triangle area** = 12m / 2

**Triangle area** = 6m²

### Trapezoid

**Trapezoid area [m²]** = (a + b) / 2 * h

**Example:** a = 2m | b = 4m | h = 5m

**Trapezoid area** = (2m + 4m) / 2 * 5m

**Trapezoid area** = 6m / 2 * 5m

**Trapezoid area** = 3m * 5m

**Trapezoid area** = 15m²

### Hexagon

**Hexagon area [m²]** = (3√3) / 2 * a²

**Example:** a = 2m

**Hexagon area** ≈ 5.20 / 2 * (2m)²

**Hexagon area** ≈ 2.6 * 4m²

**Hexagon area** ≈ 10.4m²

### Octagon

**Octagon area [m²]** = 2 * a² * (1+√2)

**Example:** a = 4m

**Octagon area** = 2 * (4m)² * (1+√2)

**Octagon area** ≈ 32m² * (2.41)

**Octagon area** ≈ 77m²