Mesh Memory Estimator
Estimate raw vertex and index buffer storage for a mesh.
Your inputs
Calculation results
Formula & assumptions
Vertex bytes = count × stride; triangle index bytes = triangles × 3 × index bytes.
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 Mesh Memory Estimator
Estimate raw vertex and index buffer storage for a mesh.
- Enter vertices, vertex stride, triangles, index bytes 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
Vertices: 100000 vertices Vertex stride: 32 bytes Triangles: 200000 triangles Index bytes: 4 bytes Vertex buffer · MiB: 3.0517578 Index buffer · MiB: 2.2888184 Combined · MiB: 5.3405762
Questions & answers
What does Mesh Memory Estimator calculate?
Estimate raw vertex and index buffer storage for a mesh.
Which units should I enter?
Vertices uses vertices. Vertex stride uses bytes. Triangles uses triangles. Index bytes uses bytes. Convert values to these units before calculating.
Which formula does it use?
Vertex bytes = count × stride; triangle index bytes = triangles × 3 × index bytes.
What does the included example show?
Vertices: 100000 vertices; Vertex stride: 32 bytes; Triangles: 200000 triangles; Index bytes: 4 bytes. Result: Vertex buffer · MiB = 3.0517578; Index buffer · MiB = 2.2888184; Combined · MiB = 5.3405762.
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.
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