Medical Bill Breakdown Helper
Enter your bill details and get an estimate of what you may owe — with a plain-English explanation of how deductibles, copays, and coinsurance work together.
Enter Your Bill Details
All calculations run in your browser — nothing is sent anywhere. Results update as you type.
Billed Amounts
The total shown on your bill from the provider.
The amount your insurer agrees to pay for this service. Usually shown on your Explanation of Benefits (EOB).
Your Plan Details
How much of your annual deductible you still owe before insurance starts sharing costs. Enter 0 if you've met it.
A fixed dollar amount your plan requires for this type of visit (e.g., $30 specialist copay). Leave at 0 if not applicable.
After your deductible, your share of costs. If your plan pays 80%, your coinsurance is 20%. Leave at 0 if you pay a copay instead.
Once you hit this limit for the year, your insurer covers 100% of in-network costs. Enter 0 if you've met it.
Network Status
Out-of-network care typically has higher cost-sharing.
How medical cost-sharing works
Most health insurance plans share costs between you and your insurer through three main mechanisms — and they apply in a specific order. Understanding that order is the key to understanding your bill.
Deductible first
Your deductible is the amount you pay out-of-pocket each year before your insurance starts sharing costs. Until you meet it, most services are billed at the allowed (negotiated) rate directly to you.
Copay or coinsurance next
Once your deductible is met, your plan picks up most of the tab — but you still pay either a fixed copay (e.g., $30 per visit) or a coinsurance percentage (e.g., 20% of the allowed amount).
Out-of-pocket maximum caps your exposure
There's a yearly limit on how much you can pay. Once your total out-of-pocket costs hit that limit, your insurer covers 100% of covered in-network services for the rest of the year.
Allowed amount vs. billed amount
Providers often charge more than insurers agree to pay. Your cost-sharing is based on the lower "allowed amount" — not the billed amount. The difference is typically written off (if you're in-network).
Want a deeper walkthrough? Read our guide: How to Read a Medical Bill Before You Pay It →
Educational estimate only. This tool is not affiliated with any insurer, hospital, or government agency. Results are estimates — your actual cost will be determined by your plan documents and provider billing. Always verify with your insurance company and provider before paying.
More tools coming soon
We're building additional helpers to cover more of the medical billing puzzle.
Good Faith Estimate vs Final Bill Checker
Coming SoonCompare any upfront cost estimate your provider gave you with the final bill, line by line, so you can ask informed questions before paying.
Deductible / Coinsurance Estimator
Coming SoonNot sure how much of your deductible you've met this year? Estimate how much of upcoming care you'll pay out-of-pocket based on your plan details.
ER vs Urgent Care Cost Comparison
Coming SoonEmergency room visits are often far more expensive than urgent care for similar issues. A future helper will help you compare typical cost ranges using your own plan details.
Out-of-Pocket Maximum Tracker
Coming SoonTrack how close you are to your annual OOP max. Once you hit it, your insurer covers 100% of in-network costs for the rest of the year.