Insulin-to-Carb Ratio Calculator
Educational estimate of meal and correction insulin.
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These rules of 500 and 1800 are general starting points only. Never change insulin doses without your diabetes care team.
Medical disclaimer: This tool is for education and is not medical advice. Read more.
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Frequently asked questions
What does the Insulin-to-Carb Ratio Calculator do?
Educational estimate of meal and correction insulin. Enter your values and the result and chart update instantly.
How accurate is it?
It uses published, widely used formulas. Results are estimates for education and planning, not a diagnosis. Talk to a qualified clinician about decisions affecting your health.
Is my information stored or shared?
No. All calculations run in your browser and nothing you type is sent to a server or saved.
What can I search to find this tool?
People find it by searching for: how much insulin for carbs; insulin correction factor; type 1 diabetes meal dose.