How Much Protein Do I Need Each Day?

Worried if you're getting enough protein? There's no cut-and-dried answer for how many grams a woman should get each day — it depends on your weight, your activity level, and whether or not you're pregnant. But with a little elementary school math, there's an easy way to calculate the number of protein grams that's right for you.

Take your weight in pounds and divide it by 2.2 to figure out your weight in kilograms. Then multiply that number by 0.8 (not very active), 1.3 (active or pregnant), or 1.8 (extremely active), depending on how much exercise you get.
As a general guideline, the USDA's RDA for protein for women 30 to 51 years old is 0.66 grams of protein per kilogram of body weight per day. The CDC's average requirement of protein for women ages 19 to 70 is 46 grams per day. But, as you can see from this chart, you'll need to up that if you're expecting or training for a marathon.
Check out the chart below to see how much protein you should be eating each day. If you don't see your weight, just use the formula above to calculate your daily protein.

Weight (lbs)	Weight (kg)	Protein per day (not very active)	Protein per day (active or pregnant)	Protein per day (extremely active)
100	45.5	36.4 g	59.2 g	81.9 g
105	47.7	38.2 g	62 g	85.9 g
110	50	40 g	65 g	90 g
115	52.3	41.8 g	68 g	94.1 g
120	54.5	43.6 g	70.9 g	98.1 g
125	56.8	45.4 g	73.8 g	102.2 g
130	59.1	47.3 g	76.8 g	106.4 g
135	61.4	49.1 g	79.8 g	110.5 g
140	63.6	50.9 g	82.7 g	114.5 g
145	65.9	52.7 g	85.7 g	118.6 g
150	68.2	54.7 g	88.7 g	122.8 g
155	70.5	56.4 g	91.7 g	126.9 g
160	72.7	58.2 g	94.5 g	130.8 g
165	75	60 g	97.5 g	135 g

Based on the numbers above, do you already get enough protein per day?