What man hasn’t asked that question? Courtesy of BBC News, you have have your answer.
Using UN data on population size in 177 countries, together with estimates of global weight from the WHO and mean height from national health examination surveys the team were able to calculate average BMI figures for each country.
Using the values that you input into the calculator, it works out your BMI as well as where you are in relation to the rest of the population in your country and the world for your gender and age.
If your girlfriend’s BMI reading doesn’t say, “You have a lower BMI than 90% of females aged 15-29 in your country,” then you are dating a fattie.
If you don’t have the heart to break up with her, send her a link to the calculator as a hint/warning.
P.S. Don’t give me any bullshit about how BMI is ineffective because muscle weighs more than fat. Unless your girlfriend has veins in her arms, she’s not lean enough for that excuse to apply.