Identify what your recipe needs olive oil for: high-heat cooking, baking moisture, or salad/finish flavor.
Choose the best match from the table by role, then use the listed ratio (1:1 or the butter/ghee ¾:1 swap).
If your substitute is stronger-flavored (butter/ghee), reduce added salt and taste at the end; if it’s very neutral, consider adding a pinch of salt or a squeeze of lemon.
For high heat (roasting/pan-frying), prefer avocado or grapeseed; for cakes/muffins, choose canola or vegetable oil.
Proceed with your recipe, then adjust seasoning after cooking because flavor profiles change once heated.