Calculadora de Bituca de Cigarro
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
Bitucas/ano = cigarros/dia × 365; massa = bitucas × 0,17 g; decomposição: 10 anos por bituca
About this calculator
The Cigarette Butt Calculator estimates the environmental impact of discarded cigarette butts. By entering the number of cigarettes smoked per day, the tool calculates the annual number of butts, their total mass, and the approximate decomposition time. The goal is to raise awareness about the harm caused by this waste, which contains toxic substances and takes years to degrade.
The calculation is simple: multiply the number of cigarettes smoked per day by 365 to get butts per year. Then multiply this value by 0.17 grams (average mass of a butt) to estimate the total mass generated. Finally, each butt takes about 10 years to decompose in the environment, resulting in a long-lasting impact.
Use this calculator to better understand the ecological weight of smoking, especially in urban areas and beaches. It is useful for awareness campaigns, environmental studies, or smokers who want to reduce their impact. Remember that butts contain nicotine, heavy metals, and plastic (filter), contaminating soil and water.
Cautions: the mass of 0.17 g is an average; butts may vary depending on the cigarette. Actual decomposition time depends on environmental conditions (humidity, temperature). Also, the calculator does not consider proper disposal (in ashtrays) or recycling. Use the results as an educational estimate and encourage proper disposal.
Frequently asked questions
How does the calculator estimate the total mass of butts?
By multiplying the annual number of butts by 0.17 grams, the average mass of a cigarette butt.
Is the decomposition time accurate?
It is an average estimate of 10 years; in practice, it can range from 2 to 15 years depending on environmental conditions.
Does the calculator consider biodegradable filters?
No, most filters are made of cellulose acetate, a plastic that takes decades to decompose. The calculator uses an average time of 10 years for the entire butt.
Can I use the results for scientific purposes?
The results are educational and do not replace detailed studies. For research, consult specialized sources on butt composition and degradation.
How can I reduce the impact of butts?
Use portable ashtrays, dispose of butts properly, and consider quitting smoking. Each improperly discarded butt can pollute up to 50 liters of water.