Free oxalate calculator — estimate your daily oxalate intake from common foods to help lower calcium oxalate kidney stone risk. A quick, practical tool for stone prevention.
Last updated: 2026-07-09
Oxalate is a natural compound found in many plant foods. In people prone to calcium oxalate stones — the most common type — high urinary oxalate can raise the risk of forming new stones.
This calculator helps you estimate your rough daily oxalate intake from common foods. Enter the number of servings you typically eat, and the tool adds up approximate oxalate values to show whether your intake falls in a low, moderate, or high range.
For a complete at-a-glance reference of oxalate levels in common foods, see our oxalate food chart. For practical guidance on which foods to choose, see our guide to foods low in oxalate.

Practical dietary guidance to help reduce kidney stone risk — track oxalate, calcium, sodium, and hydration in real foods.
This article is for educational and informational purposes only. It is not intended as medical advice, diagnosis, or treatment. Always consult your physician, registered dietitian, or other qualified healthcare provider with any questions you may have regarding a medical condition or dietary changes.