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Easily calculate support force with our free Support Force Calculator. Learn the formula, steps, and examples for beams, levers, and structures in simple words.
SF = (M₁ + M₂) × g
When a beam or lever holds weight, it needs support. The push or pull that keeps it in balance is called the support force. Our Support Force Calculator helps you find this value in seconds. You don’t need to be an engineer to use it. Just enter the masses and gravity, and you’ll get the result.
This tool works for beams, steel supports, and even simple classroom examples. It’s quick, simple, and accurate.
A support force is the total upward push at a point that holds a beam or lever in balance. Think of a seesaw in a park. When two kids sit on it, the ground under the pivot provides the support force.
Mathematically, the support force is:
SF = (M1 + M2) × g
Where:
Let’s say object 1 is 30 kg and object 2 is 10 kg. Gravity is 9.81 m/s².
SF = (M1 + M2) × g
SF = (30 + 10) × 9.81
SF = 40 × 9.81
SF = 392.4 N
The support force is 392.4 Newtons.
Support force shows if a beam or structure can stay balanced. In construction, engineers use it to design safe bridges and steel beams. In classrooms, students use it to learn physics. Even in daily life, like when you lean on a table, the support force keeps it steady.
The calculator works best when the beam is in equilibrium. For more complex problems, you may also need to check bending moment and shear force. That’s where tools like a bending moment diagram calculator or a shear and moment diagram calculator come in. But for basic support reaction, this calculator is enough.
The Support Force Calculator makes physics simple. You’ll save time, avoid errors, and understand real-world balance better. Whether you’re a student, teacher, or engineer, this tool helps you work out support forces with ease.
Add the masses on the beam and multiply by gravity.
Yes, you can. The formula is the same.
Yes, our tool is free and works instantly.
SF is support force. BM is bending moment. You calculate SF with the formula above. BM needs distances and torque values.
A chair pushing upward on you while you sit is a clear example.