Quadrilateral Area Calculator Quadrilateral Area Calculator Calculate area of general quadrilaterals using Coordinates, Diagonals, Side lengths with Split/Diagonal, or Bretschneider’s formula. Calculation Mode Coordinates (Shoelace)Diagonals + Included Angle4 Sides + Diagonal (Heron Split)Bretschneider (Sides + Angle Sum)Vectors (Adjacent Sides) Enter 4 vertices in order. Unit mcmmmftin Diagonal d1 mcmftin Diagonal d2 mcmftin Angle between Diagonals…

Reverse Area Calculator Reverse Area Calculator Find dimensions from known Area. Select Shape SquareCircleRectangleTriangleParallelogram Total Area sq units Known Dimension Resulting Dimension — Perimeter — — — Calculates missing dimensions assuming standard geometric formulas.   In most math problems, you measure the side lengths to find the area. But in the real world, the problem…

Rectangular Prism Surface Area Calculator Rectangular Prism Calc Calculate Surface Area & Volume with visual geometric nets. Dimensions Length (l) Width (w) Height (h) Unit Inches (in)Feet (ft)Centimeters (cm)Meters (m)Millimeters (mm) Subtract Obstacles (e.g., Missing Paint Points) Exclusions (Windows/Doors) + Add Exclusion 3D Solid Unfolded Net Front Back Right Left Top Bottom Total Surface Area…

Calculator: Polygon Area Shoelace Method Visualizer Points (Order Matters) # X Y + Add Point Load Triangle Load Square Step 1: The “Shoelace” Matrix Multiply diagonals. Blue (↘) add. Red (↙) sub. (First point repeats at end). Step 2: Sum Products Final Area Calculation Area = 0.5 × | 0 – 0 | 0 Geometric…

Lot Area Calculator Lot Area Calculator Measure Land, Irregular Lots & Check Zoning Coverage Regular Shape Irregular (Deed) Lot Shape Rectangle / SquareCircularTriangle Divide your lot into triangles (using diagonal measurements) and enter sides for each. + Add Another Triangle Input Unit Feet (ft)Meters (m)Yards (yd) TOTAL LOT AREA 0 0 Acres | 0 Hectares…

Lateral Surface Area Calculator Lateral Surface Area Calculator Calculate Lateral (Sides) vs. Total Surface Area Select Shape: CylinderConeRectangular Prism (Box)CubeTriangular PrismSquare PyramidSphere cm m in ft Formula Used: LSA = … Lateral Area (Sides) Base Area Schematic Diagram (Not to Scale)   In 3D geometry, Surface Area comes in two flavors. Total Surface Area (TSA)…

Land Area Calculator (4 Sides) Land Area Calculator Accurate 4-Sided Plot Measurement Unit: Feet Meters Yards Mode: Exact (Diagonal) Approximate 1. Enter Dimensions Side A (Length) ft Side B (Width) ft Side C (Length) ft Side D (Width) ft Diagonal Length ft *Connects Corner A-B to C-D (splits plot into 2 triangles) Approximation Mode: Calculating…

Land Area Calculator Calculate irregular 4-sided plot areas using simple measurements or coordinates. Unit Meters (m)Feet (ft)Yards (yd) Sides + Diagonal Sides + Angle Coordinates 📐 Measure 4 sides and 1 diagonal for best accuracy without a surveyor. Side A Side B Side C Side D Diagonal (Corner 1 to 3) Connects start of Side…

Irregular Shape Area Calculator Irregular Shape Area Calculator Compute area using Vertices (Shoelace), Decomposition (Triangles/Trapezoids), or Trapezoidal Sampling. Input Mode Vertices (Shoelace Formula)Decomposition (Triangles + Trapezoids)Trapezoidal Sampling Precision 4 decimals0 decimals2 decimals6 decimals Default Unit mcmmminftyd + Vertex Clear Seed Rectangle # X Y + Triangle + Trapezoid Clear No shapes added yet. Enter X,Y…

Hole Area Calculator Perforated Engineering & Geometry Perforated Sheet Single Hole Pattern Type Round Hole (60° Staggered)Round Hole (Straight)Square Hole (Straight) Hole Size (D/S) Pitch (P) Error: Hole Size cannot exceed Pitch. Shape Circle / Round HoleAnnulus (Hollow Ring) Diameter (Outer) Diameter (Inner) Open Area Percentage –% Formula: 90.69 * (D/P)²   The Hole Area…