Prime Number Generator Generate the first N prime numbers efficiently. Number of Primes to Generate: Generate Pause Reset Ready to generate. Export Results Copy to Clipboard Download .txt Copied to
Advanced Interactive Concrete Calculator How to Use: Select Shape: Choose the shape of the concrete structure (Slab/Footing or Round Column). Dimensions & Units: Enter the dimensions required for the selected
Advanced Interactive Lumber Board Foot Calculator How to Use: Lumber Dimensions: Enter the nominal Thickness of the lumber in inches (e.g., 1, 2). Enter the nominal Width of the lumber
Advanced Interactive Flooring Estimator How to Use: Global Settings: Set your preferred Currency Symbol and the Unit for all room dimensions (meters or feet). Room Dimensions: Click "Add Room" for
Advanced Interactive Paint Project Estimator How to Use: Room Dimensions: Enter the Length, Width, and Height of the room. Select the unit (meters or feet). Surfaces to Paint: Check "Paint
Advanced Interactive Qibla Direction Finder How to Use: Start: Click the "Start Qibla Finder & Grant Permissions" button. Your browser will ask for Location and Device Motion/Orientation access. Please allow
Advanced Interactive Compass How to Use: Enable Compass: If prompted, or if the compass doesn't start, click the "Enable Compass / Request Permissions" button. This is required on many mobile
Advanced Interactive Geodesic Bearing Calculator How to Use: Enter Coordinates: Input the Latitude and Longitude (in decimal degrees) for Point 1 (Origin) and Point 2 (Destination). Latitude values: -90 to
Advanced Interactive Map Scale Calculator How to Use: Enter Map Scale: Input the denominator of your map's scale (e.g., if the scale is 1:50,000, enter 50000). Enter Map Distance: Input
Advanced Latitude/Longitude Converter How to Use: Select Coordinate Type: Choose whether you are converting a Latitude or Longitude. Select Input Format: Specify if your input is in Decimal Degrees (DD)