断面积计算器
Enter values to see results and the formula.
Calculate
Example values are ready
Review the inputs, then select Calculate.Calculation formula
计算结果 = pi*diameter**2/4
- diameter
- 树干胸径 · m
- pi
- 3.141592653589793
Enter values to see results and the formula.
Example values are ready
Review the inputs, then select Calculate.计算结果 = pi*diameter**2/4