OP - are you in U.S. Or elsewhere? You might be able to change units on the website. This is my GO TO RECIPE - even though it says "cake" it makes wonderful cupcakes. Made it countless times - even added chocolate and other flavors - I'm a terrible cook but can't manage to mess these up. My friend even requested I make them for her birthday this year, I added peanut butter and chocolate frosting with gold sprinkles - huge hit! Hope it works for you to copy and paste:
https://allrecipes.com/recipe/17481/simple-white-cake/
If not, it's just allrecipes.com - simple white cake (has about 2400 reviews)