3D Printing Carbon Footprint Calculator

Calculate the CO₂ footprint of your 3D print and compare it to buying the injection-moulded equivalent. See how much carbon you save by printing locally instead of importing from China.

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Your electricity grid region

Printer power (W)

Print time (hours)

Print weight (g)

Filament material

Manufacturing CO₂: 2 kg CO₂/kg of filament

Where would the equivalent item have been shipped from?

Prints per month (optional — for monthly impact)

Your 3D print

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How to reduce your 3D printing carbon footprint

Choose PLA

PLA has the lowest manufacturing CO₂ of common filaments at ~2 kg/kg — roughly half that of ABS. It is also the most widely recyclable.

Print at night (UK)

The UK grid is often greener at night when wind power peaks and industrial demand drops. Grid intensity can halve between 2am–6am on windy nights.

Reduce print time

Faster printing (where quality allows) cuts electricity use. Bambu Lab printers print 5–10× faster than budget FDM printers at the same quality level.

Print instead of import

Replacing a China-shipped item with a local print typically saves 2–5 kg CO₂ in shipping alone — often outweighing the print electricity cost entirely.

Grid carbon intensity by country (2024)

Country	kg CO₂ / kWh	CO₂ for a 3h 200W print
UK	0.207	0.124 kg
USA	0.386	0.232 kg
EU Average	0.276	0.166 kg
Germany	0.35	0.210 kg
France	0.052	0.031 kg
Canada	0.13	0.078 kg
Australia	0.51	0.306 kg
China	0.581	0.349 kg

Based on 200W printer, 3-hour print. Grid factors from Electricity Maps / IEA 2024 data.

FAQ

Is 3D printing better or worse for the environment than buying?

It depends heavily on what you're replacing and where it's shipped from. Printing locally avoids the carbon cost of sea freight from China (roughly 2.5 kg CO₂ per item for a typical 0.5 kg parcel). However, if your electricity grid is carbon-heavy (e.g. Australia at 0.51 kg CO₂/kWh) and the print time is long, electricity can outweigh the shipping saving. France's nuclear-heavy grid makes it one of the greenest countries to 3D print in.

How much CO₂ does a typical 3D print produce?

A 50g PLA print taking 3 hours on a 200W printer in the UK produces roughly 0.13 kg CO₂ from electricity and 0.10 kg from filament manufacturing — about 0.23 kg total. The equivalent injection-moulded item shipped from China would produce around 0.30 kg in manufacturing plus 2.5 kg in shipping — nearly 12× more.

What's the greenest filament material?

PLA has the lowest manufacturing carbon footprint of common filaments (~2 kg CO₂/kg) because it is bio-based and requires less energy to produce than petrochemical plastics. ABS has the highest at ~4 kg CO₂/kg. For most prints, the electricity used during printing dominates total CO₂, so your electricity grid matters more than the material choice.