About how many times does your heart beat in your lifetime? 35 million100,0002-3 billion

The average human heart beats about 60-100 times per minute. If we take the average of 80 beats per minute, here's how you can calculate approximately how many times your heart beats in a lifetime:

1. Calculate how many beats per hour: 80 beats per minute * 60 minutes = 4,800 beats per hour
2. Calculate how many beats per day: 4,800 beats per hour * 24 hours = 115,200 beats per day
3. Calculate how many beats per year: 115,200 beats per day * 365 days = 42,048,000 beats per year
4. Calculate how many beats in an average lifetime: If we take the average lifespan to be about 80 years, then 42,048,000 beats per year * 80 years = 3,363,840,000 beats in a lifetime

So, the heart beats approximately 2-3 billion times in a lifetime.