Pair comparison
Bottled water vs. tap water (1 liter)
1 liter of water
Bottled water requires PET bottle manufacturing and transport. Tap water is hundreds of times lower in emissions.
Dimension-by-dimension comparison
1 liter of water — absolute values
Both items scaled to the same unit (1 liter of water). Lower value = lower environmental impact.
| Dimension | Bottled water | tap water (1 liter) | Difference | Lower |
|---|---|---|---|---|
| Carbon Emissions | 0.16 kg CO₂e | 0.0 kg CO₂e | +0.16 | item 2 → |
| Water Consumption | 1.4 liters | 1.0 liters | +0.4 | item 2 → |
| Land Use | 0.0 m²·year | 0.0 m²·year | 0 | item 2 → |
| Waste | 0.025 kg | 0.0 kg | +0.025 | item 2 → |
| Toxicity | 0.5 µDALY | 0.0 µDALY | +0.5 | item 2 → |
Visual comparison
Carbon Emissions
Bottled water
0.16
tap water (1 li…
0.0
Water Consumption
Bottled water
1.4
tap water (1 li…
1.0
Land Use
Bottled water
0.0
tap water (1 li…
0.0
Waste
Bottled water
0.025
tap water (1 li…
0.0
Toxicity
Bottled water
0.5
tap water (1 li…
0.0
Where do the numbers come from?
Click an item to see the detailed calculation, sources, and confidence rating.