Popular questions, answered with everyday objects

Quick answers to questions people often ask about big numbers, each with the calculation behind it. Want to try your own number? Use the calculator on the home page.

How many elephants weigh 100 tonnes? 100 tonnes is heavier than 16 African elephants.
How many paperclips weigh 1 kg? 1 kg weighs as much as 1,000 paperclips.
How many households can 1 GWh power for a year? 1 GWh is enough electricity for more than 95 American households for a whole year.
How many wind turbines does it take to make 1 GW? 1 GW is more power than 71 Haliade-X offshore wind turbines running at full speed.
How many football fields fit in 10 hectares? 10 hectares is bigger than 18 NFL football fields.
How many football fields fit in a square kilometre? 1 km² is bigger than 186 NFL football fields.
How many beef burgers equal 1 tonne of CO₂? 1 tonne CO₂ is as much CO₂ as 250 quarter-pound beef burgers.
How many Happy Meals can you buy for €100? €100 buys more than 20 Happy Meals.
What can you buy with €1 million? €1 million buys 25 new Tesla Model 3s.
How many times around the Earth is 1 million km? 1,000,000 km is more than 24 trips around the Earth.
How many marathons is 1,000 km? 1,000 km is more than 23 marathons.
How many stadiums would 1 million people fill? 1 million people is more people than 14 Super Bowl crowds.
How many HD films fit on 1 TB? 1 TB is more data than 166 Netflix films in HD.
How many photos fit in 1 GB? 1 GB is more data than 333 smartphone photos.

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