If you are comparing Medicare Supplement plans in 2026, do not stop at the monthly premium. A lower premium can be a good deal, but only if the savings are larger than the copays, deductible exposure, and risk you keep.
That is why I built a free Medicare Supplement Plan G vs Plan N calculator. It helps you compare estimated annual costs for Plan G, Plan N, High-Deductible Plan G, and a High-Deductible Plan G plus hospital indemnity structure.
The calculator is not a quote engine. It is an educational tool that helps you see the math before we pull exact rates for your ZIP code, age, tobacco status, household discount, and carrier options.
What a Medicare Supplement Calculator Should Compare
A useful Medicare Supplement calculator should compare total annual cost, not just premium.
For most people, that means looking at:
- monthly Medicare Supplement premium
- annual premium total
- the Medicare Part B deductible
- Plan N office visit and emergency room copays
- possible Part B excess charges
- High-Deductible Plan G deductible exposure
- hospital scenarios when comparing indemnity options
- future premium growth assumptions
The simplest formula is:
Annual premium + expected deductibles + expected copays + estimated coinsurance exposure = estimated annual cost.
That number is more useful than asking only, “Which plan has the lowest premium?”
Plan G vs Plan N: Why the Math Matters
Plan G usually costs more each month than Plan N, but it also removes more small bills from the equation. After you pay the Part B deductible, Plan G covers most Medicare-approved out-of-pocket costs.
Plan N usually lowers the monthly premium, but it can add office visit copays, emergency room copays, and possible Part B excess charges if a provider does not accept Medicare assignment.
The question is not whether Plan G or Plan N is automatically better. The question is whether Plan N saves enough in premium to justify the extra moving parts.
For a deeper breakdown, read Plan G vs Plan N in Missouri: how to compare Medigap costs and coverage.
How High-Deductible Plan G Changes the Comparison
High-Deductible Plan G can be attractive because the monthly premium is usually much lower than standard Plan G. The tradeoff is that you are responsible for more covered costs before the high-deductible policy begins paying.
In 2026, CMS lists the High-Deductible Plan G deductible as $2,950. That does not mean everyone will spend that amount every year, but it does mean you need to be comfortable with the exposure if a bad health year happens.
The calculator helps show the difference between:
- paying more monthly premium for predictable Plan G coverage
- paying less monthly premium with Plan N and possible copays
- paying a low premium with High-Deductible Plan G and accepting more upfront risk
- pairing High-Deductible Plan G with a hospital indemnity policy, when appropriate
What 2026 Medicare Numbers Are Used?
The calculator uses fixed 2026 Medicare figures published by CMS and Medicare.gov, including:
- Part B deductible: $283
- Part A inpatient hospital deductible: $1,736 per benefit period
- High-Deductible Plan G deductible: $2,950
- Plan N office visit copay: up to $20
Premiums, visit counts, estimated coinsurance, hospital indemnity premium, benefit amount, and future premium growth are adjustable assumptions. Those numbers should be personalized before you make an enrollment decision.
When the Calculator Is Most Helpful
The calculator is most helpful before a Medicare review appointment because it gives us a starting point.
Use it when you want to ask:
- “How many doctor visits would make Plan G worth the higher premium?”
- “How much would Plan N save me in a healthy year?”
- “What happens if I have one hospital stay?”
- “How much risk am I accepting with High-Deductible Plan G?”
- “What happens over 10 years if premiums rise at different rates?”
Those questions lead to a better conversation than simply asking which plan is cheapest today.
What the Calculator Cannot Do
The calculator cannot quote every carrier, guarantee benefits, predict future rate increases, or replace a plan-specific review.
Medicare Supplement premiums vary by ZIP code, age, tobacco status, household discount, carrier, and whether you are applying during your Medigap open enrollment window or going through underwriting.
If you want exact rates, I can compare available options for your area. The calculator gives us the framework; current carrier quotes give us the actual numbers.
Try the Medicare Supplement Calculator
You can use the calculator here: Medicare Supplement Plan G vs Plan N calculator.
If you want help reading the results, call 816-291-3655 or schedule a free Medicare review. There is no cost to compare plans, and your premium is the same whether you enroll through an advisor or directly with the carrier.
Frequently Asked Questions
What is the best way to calculate Medicare Supplement costs?
The best way is to compare total annual cost. Add annual premium, the Part B deductible, expected copays, likely coinsurance exposure, and any high-deductible or hospital scenario you want to test.
Is Plan G always better than Plan N?
No. Plan G is more predictable, but Plan N can make sense if the premium savings are larger than your expected copays and excess-charge risk. The right answer depends on your health, providers, budget, and risk tolerance.
Can a Medicare Supplement calculator give exact quotes?
No. A calculator can estimate scenarios, but exact Medicare Supplement quotes depend on your ZIP code, age, tobacco status, household discount, carrier, and application situation.
Should I compare High-Deductible Plan G?
Yes, especially if you are healthy, comfortable with more upfront risk, and want lower monthly premiums. High-Deductible Plan G should be compared against your cash flow and your ability to handle a high-cost year.