EVERYDAY PLANNING · VERSION 1.0.0

Truncated Cone Calculator

Calculate capacity and surface for a cone with its tip removed.

Instant calculationCompare five scenariosJSON + CSV exports

Your inputs

Calculation results

Formula & assumptions

Volume = πh(R²+Rr+r²)/3.

Values use the specified units. Calculations use floating-point arithmetic. Check input measurements and formula assumptions before applying the result.

Compare your scenarios

Save up to five results to compare changes side by side. Scenarios stay in this tab until you clear or reload it.

Using Truncated Cone Calculator

Calculate capacity and surface for a cone with its tip removed.

Enter bottom radius, top radius, height using the units printed under each field.
Choose Calculate, or enable live updates. Review the result labels and formula assumptions.
Save scenarios to compare up to five variations, then copy the report or download JSON or CSV.

Example

Bottom radius: 8 cm
Top radius: 4 cm
Height: 15 cm
Volume · cm³: 1759.2919
Capacity · liters: 1.7592919
Side area · cm²: 585.2476

Questions & answers

What does Truncated Cone Calculator calculate?

Calculate capacity and surface for a cone with its tip removed.

Which units should I enter?

Bottom radius uses cm. Top radius uses cm. Height uses cm. Convert values to these units before calculating.

Which formula does it use?

Volume = πh(R²+Rr+r²)/3.

What does the included example show?

Bottom radius: 8 cm; Top radius: 4 cm; Height: 15 cm. Result: Volume · cm³ = 1759.2919; Capacity · liters = 1.7592919; Side area · cm² = 585.2476.

Can I compare different settings?

Yes. Save a scenario, change the inputs and save another result. Up to five scenarios are compared in this tab; they disappear when you reload or leave.

Can I export the calculation?

Copy the JSON report or download JSON and CSV with inputs, result labels and numeric values. Processing uses local JavaScript; no calculation request is sent to our server. Displayed values use up to 10 significant digits; exports retain JavaScript numeric precision.