Health Insurance Cost Explorer

Follow a medical bill. Compare two plans. See how changing healthcare use changes what you pay.

HES100 • Fictional individual plans • One plan year • Covered, in-network care

Start here: what do these terms mean?
Premium
Payment for coverage, even when you receive no care. Annual premiums = monthly premium × 12.
Deductible
Amount you pay toward services subject to the deductible before the plan begins sharing those costs.
Copay
A fixed payment for a covered service. Whether the deductible applies depends on the plan.
Coinsurance
Your percentage of eligible costs after the applicable deductible. A 20% patient share means the plan pays the other 80%, until the maximum changes the split.
Allowed amount
The amount recognized by the plan for a service. This can differ from the provider's billed price.
Out-of-pocket maximum
A limit on eligible spending for covered, in-network care in the plan year. Premiums are separate.

Before changing the values, predict: how much of this bill will you pay? This service uses deductible then coinsurance, with no copay.

Bill and current plan-year spending

Eligible spending already paid includes deductible payments plus eligible copays and coinsurance. Use the fields or sliders to explore.

Model limits and research sources

This is a simplified teaching model, not a quote for a real plan. It excludes family coverage, out-of-network and noncovered care, separate drug deductibles, subsidies, employer contributions, and tax effects. Certain preventive services may be covered without cost sharing; they are not included in these charged visits.

The annual comparison begins with no deductible or eligible spending paid and 12 months of coverage. The single-bill view lets you explore spending already paid. The out-of-pocket limit does not include premiums or noncovered expenses. Provider access, benefits, and affordability matter alongside modeled cost.

Sources reviewed October 2, 2026. Example values are illustrative, not market prices or statutory limits.