The plastic use calculator estimates your annual plastic consumption and waste from daily habits. Single-use plastics make up most of household plastic waste — understanding where your plastic comes from is the first step to reducing it.
Weekly Plastic Habits
Estimates based on average plastic item weights. Actual values vary by brand and product.
How to Calculate Your Plastic Footprint
Enter your typical weekly consumption of single-use plastics across five categories. The calculator estimates annual plastic weight, CO2 from production, and how your usage compares to the US average of about 130 kg of plastic per year.
What Gets Counted
The calculator tracks the most common single-use plastic items: water bottles (avg 25g each), shopping bags (avg 8g), takeaway containers (avg 40g), straws (avg 2g), and food packaging (avg 15g). These items collectively represent 40-60% of typical household plastic waste.
Reducing Your Footprint
The highest-impact switches: reusable water bottle (saves ~100 single-use bottles/year), reusable bags (saves ~260 bags/year), and saying no to straws. These three changes alone can cut single-use plastic by 60-70% for most people.
Frequently Asked Questions
Is this plastic calculator free?
Yes, completely free with no account required. All calculations run in your browser.
How much plastic does the average person use per year?
The average American uses about 130 kg of plastic per year. Of this, roughly 35% is packaging, 20% is textiles, 14% is containers, and 12% is single-use items. Only about 9% of all plastic ever produced has been recycled. The EU average is slightly lower at ~100 kg per person.
What is the carbon footprint of plastic?
Producing 1 kg of plastic generates about 2-6 kg of CO2 depending on the type. PET (water bottles) is about 2.7 kg CO2/kg. HDPE (milk jugs) is about 1.8 kg CO2/kg. Polystyrene foam is about 3.4 kg CO2/kg. The total lifecycle including disposal adds another 20-40% to these numbers.
Which plastic items have the biggest impact?
By volume: food packaging (cling film, takeaway containers), plastic bags, bottles, and straws. By weight: plastic bottles contribute significantly. Switching from single-use to reusable alternatives for these 4-5 categories eliminates 70-80% of typical plastic waste.
Does recycling plastic make a big difference?
Recycling helps but has limits: only 1 in 9 plastic types can be economically recycled in most places, recycled plastic still loses quality each cycle, and much 'recycled' plastic is actually landfilled or exported. Reducing consumption and switching to reusables has far greater impact than recycling alone.