Lung health check
If you smoke, or used to, you may be invited to an NHS lung health check, and asked about your smoking history. This page helps you work it out beforehand.
A pack year is the same as smoking 20 cigarettes a day for one year. Work out your smoking history here before your lung health check: best guesses are fine, and nothing you enter is stored. The result is for your information; the lung health check team makes its own assessment.
A pack year is the same as smoking 20 cigarettes a day for one year. So 10 a day for 2 years is 1 pack year, and 20 a day for 10 years is 10 pack years. Cigars, roll-ups, pipes and other tobacco are converted into cigarettes so that everything can be added up.
Think back over the years you smoked: roughly how much you smoked a day, and how that changed. Best guesses are fine.
The result is for your information, and may help you answer questions at your appointment. It does not decide whether you are offered a scan: the lung health check team asks its own questions and makes its own assessment.
Your answers stay on your device. Download a PDF or save a link if you want to keep the result.
Read about NHS lung health checks on the NHS website
Whenever you are ready, free and friendly support is available: NHS Quit Smoking.
A pack year is the same as smoking 20 cigarettes a day for one year. So 10 a day for 2 years is 1 pack year, and 20 a day for 10 years is 10 pack years. See what is a pack year?
No. The result is for your information, and may help you answer questions at your appointment. The lung health check team asks its own questions and makes its own assessment: see how lung cancer screening works in England.
Best guesses are fine. Think back over the years you smoked: roughly how much you smoked a day, and how that changed. Going decade by decade can help.
No. Your answers stay on your device. Download a PDF or save a link if you want to keep the result. Your data explains more.
Whenever you are ready, free and friendly support is available: NHS Quit Smoking.
Who is invited to a lung health check in England, and how the decision to offer a scan is made.
Get in touch
If you have any questions about the smoking pack years calculator feel free to contact Dr Nigel Masters or Catherine Tutt.
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