Stair and Angle Calculator vs Trigonometry Calculator.

Stair and Angle Calculator gives tradespeople and DIYers six precise calculators in one clean, fast app. No clutter, no subscriptions — just the numbers you need on site. STAIRS Enter total height, total run, and maximum step height. The app works out the number of steps, exact riser height, and going, accounting for optional top and bottom landings. ROOF Calculate rafter length, ridge height, and roof area. Work by pitch angle or by rise — enter your total span and the app does the rest. Add roof depth to get surface area for materials. TRIANGLE Solve any right-angle triangle. Enter two of the three sides (A, B, or hypotenuse C) and get the missing side, both angles, and area instantly. AREA Switch between rectangle and circle modes. Enter length and width for area, or add height to get volume — useful for concrete, soil, or fill calculations. Circle mode gives area and circumference from a radius. CIRCLE Go deeper with circle geometry. Enter a radius and optional arc angle to calculate arc length, chord length, and sector area — useful for curved walls, arches, and landscaping. ROOM Plan paint, tiles, and flooring for any room. Enter length, width, and height, then specify the number of doors and windows (or a total opening area) to get net wall area automatically deducted. UNITS All calculators support mm, cm, m, and ft. Switch units at any time using the ruler button — inputs convert instantly. Simple, reliable, and built for real work.

Triangle Trigonometry Calculator Effortlessly calculate key values for both right-angled and scalene triangles with this intuitive, high-precision trigonometry calculator. Key Features: • Right-Angled & Scalene Support: Easily solve both right-angled and scalene triangles based on the values you know. • Formula Reference: Learn and solve with confidence by accessing a clear, organized guide to all triangle formulas used in the app. • Accurate Calculations: Quickly determine sides, angles, and area with reliable trigonometric formulas. • High Precision: Results are calculated to 14 decimal places for maximum accuracy. • Flexible Angle Units: Choose between degrees or radians for all angle inputs and outputs. • User-Friendly Interface: A clean, minimal design for fast, straightforward calculations. • Fast and Efficient: Ideal for students, engineers, and professionals needing quick, accurate results anytime. Subscribe to unlock calculation steps, formulas, and remove ads!