GPU Memory Calculator

Calculate VRAM requirements for model training & inference

Model Configuration

Total parameters in millions (M)

Floating point precision

Samples per batch

Input sequence length (tokens)

Training or inference

Optimization algorithm

Memory Breakdown

Total GPU Memory Required
0 GB
Model weights. 0 GB
Activations. 0 GB
Gradients. 0 GB
Optimizer states. 0 GB
Batch data. 0 GB
Recommended GPU
L40S / H100
Training Time Estimate
100 steps: ~5 min

Assumes 100 tokens/sec throughput on modern GPU

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TENSOR PREFLIGHT · DOWNLOADABLE PYTORCH TOOLKIT

Take the next step in your own PyTorch model.

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Is this toolkit right for my problem?

Use the free calculator for a layer formula or a quick shape check.

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Open the sample report before buying to check the output format.

Python 3.9+ · PyTorch 2.8+ · Runs locally

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