When calculating the ventilation system of a building, it is often necessary to calculate the area of ​​the entire system by adding the area of ​​each element separately. The task is not difficult, but takes a lot of time. To facilitate this task, this calculator has been made. The calculator allows you to quickly and accurately calculate the area and cost of the entire ventilation system.


Operating procedure:
1. Select the duct element for the calculation (a choice of 15 elements - round and rectangular ducts, round and rectangular bends at different angles, round and rectangular transitions, tees, plugs and tie-ins.)
2. Set the geometric dimensions of the element according to the figure.
3. Set the quantity in m. or pieces of your items
4. If necessary, set the price per piece or m.
5. Click the Calculate button.


The result will be the answer above the button "Calculation". As a result, you can observe the area of ​​one element, the area of ​​all elements and their cost.


If you are satisfied with this result, you can immediately write it to the specification by clicking on the “Add to specification” button.


For reference:
- price per item or mp can be changed directly in the specification
- a position from the specification can be removed by checking the first column of the table and clicking on the “Delete” button