Plastic footprint calculator: how much plastic do you throw away each year?
This plastic footprint calculator turns everyday habits into a number you can picture. List how many bottles, carry bags, cups, takeaway boxes, cutlery pieces, straws and snack wrappers your household uses in a typical week, and the tool multiplies each by a typical weight in grams to give the kilograms of plastic a year, the items that weigh most, and how much you save by cutting back.
Most people have no idea how much single-use plastic passes through their hands because each piece weighs so little. A 500 ml bottle is about a dozen grams, but seven a week is 4.4 kg a year. For readers in India the page also marks the items on the national single-use plastic ban, in force since 1 July 2022, so you can see how much of your habit is already prohibited.
How to use it
- Read the example week and replace each count with what your household really uses.
- Edit the grams each if you have weighed an item on a kitchen scale.
- Add up to two items of your own, such as shampoo sachets or milk pouches, with a name, a count and a weight.
- Set how much you could cut your three heaviest items.
- Read the yearly kilograms, the share on India’s ban list and the tips for your top three items, then copy the summary.
What it shows
Kilograms a year
Weekly counts × grams each × 52, added across all items.
Biggest sources first
The three heaviest items get their own tip so you cut where it matters.
India context
Items on the 2022 ban list and the carry-bag thickness rule are flagged.
Your own weights
Every weight is editable, and two blank rows take items we did not list.
Typical item weights and where they come from
Most weights come from US industry averages, so Indian items can differ. They are starting points: edit them if you weigh your own.
| Item | Grams each | Basis |
|---|---|---|
| Bottle, 500 ml with cap | 12 | Midpoint of 9.3 g (IBWA / Trayak 2021 life-cycle study, bottle, cap and label) and 15.6 g (Bangladesh PET life-cycle study) |
| Larger PET bottle | 21.6 | US average of all PET bottles (Ocean Conservancy / DSM, Aug 2022) |
| Thin carry bag | 7 | DSM 2022; the UK 2015 carrier-bag impact assessment used 7.5 g |
| Disposable plastic cup | 13.79 | DSM 2022, non-foam plastic cups |
| Foam cup | 10 | DSM 2022 |
| Cup lid | 4.5 | DSM 2022, coffee lids |
| Takeaway clamshell | 7 | DSM 2022 |
| Cutlery piece | 3.8 | DSM 2022 |
| Straw | 0.42 | DSM 2022 |
| Snack or food wrapper | 3.5 | DSM 2022 |
India’s single-use plastic rules
- From 1 July 2022 the manufacture, import, stocking, distribution, sale and use of listed single-use plastic items is banned. The list includes ear buds with plastic sticks, balloon sticks, flags, candy and ice-cream sticks, polystyrene (thermocol) decoration, plates, cups, glasses, cutlery, straws, trays, stirrers, sweet-box wrapping films, invitation cards, cigarette packets and PVC banners under 100 microns (PIB press release, 28 June 2022, on the 12 August 2021 notification).
- Plastic carry bags thinner than 75 microns were banned from 30 September 2021, and thinner than 120 microns from 31 December 2022.
- Trade sources report that the ministry clarified on 7 July 2022 that cups and trays used as packaging for dairy, food and beverages are outside the ban, though their producers must register under extended producer responsibility. Check the notification for the exact wording.
- Rules change; read the Ministry of Environment, Forest and Climate Change and CPCB notices for the current position. This is information, not legal advice.
Limits
- Only the items listed are counted. Packaging on groceries, cosmetics, clothing and products is not, so your whole plastic footprint is larger.
- The number is plastic weight thrown away, not emissions or recycling. Whether an item is recycled depends on local collection.
- Estimates assume you use the same amount every week of the year.
Plastic Footprint Calculator FAQ
How much plastic does a person use per year?
It depends on habits. Use this tool to measure your own: the example household of seven 500 ml bottles, three bags and ten wrappers a week comes to about 9 kg a year in these items alone.
How much does a plastic bottle weigh?
A 500 ml PET bottle with its cap is roughly 9 to 16 grams in published studies. The tool uses 12 g and lets you change it.
Which single-use plastic items are banned in India?
Items such as plastic straws, cutlery, stirrers, plates, cups and glasses, ear buds with plastic sticks and thermocol decoration have been banned since 1 July 2022. See the list above and the official notification.
Does this count plastic I recycle?
It counts all plastic in the items you list, whether you recycle it or not. It is a measure of use, not of waste that reaches landfill.
Why is my result lower than other plastic statistics?
Statistics for a country divide all plastic, including industry and packaging, by population. This tool covers only the everyday items you enter.
Can I add my own items?
Yes. Two blank rows take a name, a weekly count and a weight in grams, for items such as sachets or milk pouches.