Wind load on surface - Wind load calculator. When moving air - wind - is stopped by a surface - the dynamic energy in the wind is transformed to pressure. The pressure acting the surface transforms to a force. pd = dynamic pressure (Pa) ρ = density of air (kg/m3)

Easily convert wind speed to pressure with our Wind Speed to Pressure Calculator. Get accurate Pa, kPa, and PSF values instantly. No complex math needed!

This wind load calculator will show you how much force wind exerts on your structure at a specific velocity, helping you build roofs, windows, and signs safely.

Aug 6, 2022 · This wind load calculator will show you how much force wind exerts on your structure at a specific velocity, helping you build roofs, windows, and signs safely. We’re hiring! Share via

Wind results from a horizontal difference in air pressure and since the sun heats different parts of the Earth differently, causing pressure differences, the Sun is the driving force for most winds. The wind is a result of forces acting on the atmosphere:

Jul 24, 2023 · To calculate wind load using the generic formula, use F = A × P × Cd, where F is the force or wind load, A is the projected area of the object, P is the wind pressure, and Cd is the drag coefficient.

This calculator calculates the wind pressure or more correctly the dynamic or velocity pressure with wind speed and density as input. It accept both metric and imperial units such as m/s, knot, km/h, mph, ft/s, kg/m 3 and lb/cu ft.

May 29, 2025 · High- and low-pressure systems. Wind is the movement of air caused by the uneven heating of the Earth by the sun. The equator receives the sun's most direct sunlight, resulting in the planet's warmest temperatures being found near the equator. As a result, the air at the equator expands, becoming less dense, and rises. As the air rises, it ...

Wind loads are often also referred to as Wind Pressures. These pressures act over the surface area of a structure, such as a wall or roof. This distribution of pressure over an area means we can calculate the equivalent wind load force that can be used for structural design calculations.

Expressed as force per area (in pounds-per-square-foot or kilopascals), wind pressure creates uplift forces on roofs and shear forces on walls. These forces are transmitted to the foundation which must be appropriately designed to withstand them.