Prev Article. The variables of the equation are: F which represents force, k which is called the spring constant and measures how stiff and strong the spring is, and x is the distance the spring is stretched or compressed away from its equilibrium or rest position. Q. To do this, we simply divide both sides by -x. The higher the spring constant, the harder it is to compress or stretch it. The other way to calculate the compression spring constant on your spring is if you know the load you want to achieve at a certain distance traveled. Make sure when measure your extension spring you have the correct measurement for each value. The formula to figure out your spring constant from a known load and distance traveled is: Calculating your extension spring constant uses the same formula as the compression spring constant calculation. You can also use it as a spring constant calculator if you already know the force. As is the case with the force, when springs are involved this displacement is almost always measured directly or given in the problem. When the force that causes the deformation disappears, the spring comes back to its initial shape, provided the elastic limit was not exceeded. Spring Constant Calculator (F=-kx) Calculate the spring constant of a spring using Hooke’s Law. For the best experience on our site, be sure to turn on Javascript in your browser. Extension springs have the same units of measurements as compression springs, however torsion spring constant is calculated in force per 360 degrees of travel. To the right? Spring potential energy equation. The other way to calculate the compression spring constant on your spring is if you know the load you want to achieve at a certain distance traveled. This yields the equation k = -F/x. Formula to calculate spring constant. Address:2225 E. Cooley Dr. Colton, CA 92324, Working Days/Hours:Mon - Thu / 7:00AM - 5:00PM PST. Our elastic potential energy calculator uses the following formula: U = ½kΔx 2. where: k is the spring constant. Materials with larger spring constants are stiffer. Required Measurements. The set amount of distance is determined by your units of measurement and your spring … Spring Equilibrium Position: where, F x = Force, k = Spring Force Constant, x =Distance from Equilibrium, x 0 = Spring Equilibrium Position. Below you can see the formula for torsion spring constant and an example of how the formula works. Displacement can be positive if the spring is being pulled in tension, or negative if the spring is being compressed. Tweet. In simple, it is for finding the stretch of springs. It always has a positive value. Extension springs have the same units of measurements as compression springs, however torsion spring constant is calculated in force per 360 degrees of travel. In most spring applications this is done directly via a gauge. By using our services, you agree to our use of cookies, By purchasing this item, you are transacting with Google Payments and agreeing to the Google Payments. Since a torsion spring travels in degrees and not linearly it needs a different formula. The other way to calculate the extension spring constant on your spring is if you know the load you want to achieve at a certain distance traveled. Learn how to calculate several spring specifications such as spring rate, load, travel/deflection, coil count, and much more. We use bold and overline to indicate a vector. Spring constant can be defined as the force required per unit extension or unit compression of the spring. In this case we will first measure the force acting on the spring. Determine the displacement of the spring - let's say, You can also use the Hooke's law calculator in. Hooke’s Law is a principle of physics that states that the that the force needed to extend or compress a spring by some distance is proportional to that distance. supports HTML5 video, Calculator Academy© - All Rights Reserved 2020, how to find the force constant of a spring, how to find the spring constant of a spring, how to calculate force constant of a spring, determination of spring constant experiment, equation for extension force and spring constant, determine the spring constant of the spring, equation linking force spring constant and extension, how to calculate the spring constant of a spring, how to find k in elastic potential energy, x is the displacement (m) (positive for displacement, negative for compression).