It is individualised and amounts can vary depending on your activity level, age, muscle mass, current health status, during pregnancy and breast feeding.
On average females require 0.9g/kg of body weight (eg. 50kg female needs 45g protein/day).
Males require approximately 1.1g/kg of body weight (eg. 80kg males requires 88g protein/day).
It is important to remember that a food high in protein (for example red meat), is not gram for gram protein.
Here are a few examples with approximate protein quantities
100g steak = 27g protein
½ cup pumpkin/flax/chia/sunflower seeds = 25g protein
1 cup boiled lentils = 18g protein
½ cup almonds = 15g protein
100g tofu = 14g protein
1 cup cooked quinoa = 8g protein
1 large egg = 6g protein
1 cup cooked brown rice = 5g protein
1 cup broccoli = 3g protein
Image source: Pixabay