30 per cent of your kJ from fat translates to
65 grams of total fat a day
for an adult moderately-active woman who's not on a diet and is consuming 8400kJ / 2000 calories a day
85 grams of total fat a day
for an adult male who's not on a diet (10 500kJ/2500 calories)
40 grams of total fat a day
for an adult female who wants weight loss (5000kJ/1200 calories)
Remember this is a figure for total fat. You should also think about the type and quality of the fat – put the emphasis on mono- and polyunsaturated fats in preference to saturated fats.
These numbers are based on your total kilojoule intake, so the more physically active you are, the higher your fat (and total food) intake can be.