About this calculator

Soda-lime glass density 2.5 g/cm³. A 250 mL vase wall ≈ 5 mm thick needs ~280 g of gob.

Frequently asked questions

What does the Glass Gob Weight Calculator do?

Hot-glass weight needed for a blown piece by finished volume. Soda-lime glass density 2.5 g/cm³. A 250 mL vase wall ≈ 5 mm thick needs ~280 g of gob.

Is the Glass Gob Weight Calculator free to use?

Yes. Every calculator on Calcurly.com is free, works in your browser without sign-up, and can be embedded on your own website.

How accurate is the Glass Gob Weight Calculator?

Results are calculated in real time using industry-standard formulas. Treat the output as a well-informed estimate — always cross-check with local regulations, product datasheets, or a qualified glassblowing professional before committing to a purchase or a job.

What inputs does the Glass Gob Weight Calculator need?

Enter values for: Finished volume (mL), Wall thickness (mm). Sensible defaults are pre-filled where possible so you can start with a single change.

Can I embed the Glass Gob Weight Calculator on my own website?

Yes — copy the iframe snippet at the bottom of this page, or use the Embed Generator to customise the size. The embedded version stays in sync with the live calculator on Calcurly.com.