Carbon Fibre Calculator
Work out your carbon fibre and resin quantities
Enter your part's area, cloth weight and layup method below for an instant weight estimate and vacuum consumables shopping list.
Common questions
Why does layup method change the resin quantity so much?
Vacuum bagging and infusion squeeze out excess resin, achieving a higher fibre-to-resin ratio (lighter, stronger parts) than a hand wet lay-up, which typically settles around 50/50 by weight.
Which cloth weight should I choose?
200gsm is a good general-purpose choice. Lighter cloth (160gsm) wraps tighter curves more easily; heavier cloth (300-400gsm) builds thickness faster on large, simple panels.
Do I need vacuum bagging or infusion equipment?
Only if you choose those layup methods — a wet lay-up needs no special equipment. If you're new to composites, wet lay-up is the easiest starting point.