Free dialysis calculators

Two small calculators for everyday life on dialysis. They take the numbers your care team gave you and turn them into something easier to picture or to bring to your next session. Everything runs in your browser — nothing you type is stored or sent anywhere.

The fluid restriction calculator converts a daily fluid limit between millilitres, litres, US cups and fluid ounces, and keeps a simple tally of what you have drunk so far today. The interdialytic weight gain calculator shows how much you have gained since your dry weight, in kilograms, pounds and as a percentage.

Pair them with the renal-diet food lists below to look up potassium, phosphorus and sodium levels from USDA data.

• Dialysis fluid restriction calculator — Convert the daily fluid limit your care team gave you into ml, litres, cups and fluid ounces — and see how much is left today.
• Interdialytic weight gain calculator — Enter your dry weight and your weight before dialysis to see your weight gain in kg, lb and as a percentage of your dry weight.

Dialysis fluid restriction calculator · Interdialytic weight gain calculator

Renal-diet food lists

• High-Potassium Foods to Limit
• Low-Potassium Foods
• High-Phosphorus Foods to Limit
• Low-Phosphorus Foods
• High-Sodium Foods to Limit
• Low-Sodium Foods
• Search potassium, phosphorus and sodium in any food

General information, not medical advice. These calculators only do arithmetic on the numbers you enter — confirm your limits with your care team.