Enthalpy Calculator HVAC: Measure Total Heat in Air (Free Tool) You are an HVAC technician. You need to know how much heat is in the air. You have dry bulb and wet bulb temperatures. How do you find enthalpy? Enthalpy is the total heat content of air. It includes both … Read more
Sensible Heat Ratio Calculator: Optimize HVAC & Cooling Systems (Free Tool) You have an air conditioner. It removes heat from your home. But how much of that is sensible heat (temperature change) vs. latent heat (humidity removal)? The Sensible Heat Ratio (SHR) tells you. It is the ratio of sensible … Read more
Specific Heat Calculator: Calculate Heat Energy & Temperature Change (Free Tool) You are heating water. You are cooling metal. You are designing a radiator. How much energy does it take to change the temperature? Different materials need different amounts of heat to warm up. Water takes a lot. Metal takes … Read more
Moment of Inertia Calculator: Calculate Beam & Shape Resistance to Bending (Free Tool) You have a steel beam. You are designing a bridge. You are building a shelf. How much will it bend? How strong is it? The answer depends on the moment of inertia (also called second moment of … Read more
Density Calculator: Calculate Mass, Volume & Density (Free Tool) You have a metal block. It is heavy for its size. You have a piece of foam. It is light for its size. That difference is density. Density is how much mass is packed into a given volume. It tells you … Read more
Slope / Grade Calculator: Calculate Rise, Run & Percentage (Free Tool) You are building a ramp. You are laying a driveway. You are installing drainage. How steep should it be? Too steep, and it is unsafe. Too flat, and water does not drain. Slope (grade) is the steepness of a … Read more
Volume Calculator: Calculate Cubic Feet, Gallons & Liters for Any Shape (Free Tool) You are filling a pool. You are pouring concrete. You are shipping a package. You need to know the volume. Volume is the amount of space inside a three-dimensional object. It is measured in cubic feet, cubic … Read more
Area Calculator: Calculate Square Footage for Any Shape (Free Tool) You need to buy flooring. You need to paint a wall. You need to seed a lawn. You need to know the area. Area is the size of a two-dimensional surface. It is measured in square feet, square meters, acres, … Read more
Concrete Mix Calculator: Calculate Cement, Sand, and Aggregate (Free Tool) You are mixing your own concrete. You need the right proportions. Too much cement, and it cracks. Too little, and it crumbles. Concrete is made of cement, sand, gravel, and water. The right mix ratio depends on your project. Today, … Read more
Concrete Volume Calculator: Calculate Yards, Feet & Meters for Your Project (Free Tool) You are pouring a concrete slab for a patio. You need to order concrete. But how much? Too little, and you run out mid-pour. Too much, and you waste money. Concrete volume is measured in cubic yards … Read more
