On a Keto diet there's no strict guideline for the amount of carbs that you can consume while still being in Ketosis.
However to keep your body in Ketosis you should eat no more than 50 grams of total carbs per day or 30g of net carbs per day.
Eating anything with more than 50 grams of carbs per day or more than 30 grams of net carbs per day will most likely take your body out of Ketosis.
So keep the carbs around 50 or less and your body should stay in Ketosis.