Short-Term Health Insurance Calculator
Calculate the total cost of short-term health insurance coverage for gaps between employer or marketplace plans.
About this calculator
Short-term, limited-duration insurance (STLDI) is a temporary health plan designed to bridge a gap in coverage — between jobs, after aging off a parent's plan, or while waiting for a new employer's plan to start — rather than serving as a long-term substitute for ACA marketplace or employer coverage. These plans are medically underwritten in most states, can deny coverage for pre-existing conditions, and are not required to cover the ACA's essential health benefits, which is why they typically carry a lower monthly premium alongside a higher deductible and narrower coverage than a marketplace plan. This calculator totals the premium cost over your coverage period, estimates your out-of-pocket spending against an expected level of medical costs (applying your deductible, coinsurance percentage, and out-of-pocket maximum in the standard order most plans use), and computes a break-even medical expense — the point at which the plan's total cost equals what you'd have paid entirely uninsured.
How long a short-term plan can legally run, and whether it can be renewed, is set by federal regulation that has changed materially between presidential administrations, and states are free to impose their own tighter limits or ban these plans outright — so the maximum coverage duration your insurer can actually offer may be shorter than what this calculator lets you model. Always confirm the specific plan's real deductible, coinsurance, exclusions, and legally available term length directly with the insurer or your state's department of insurance before relying on a short-term plan as your only coverage.
Medical Disclaimer
This calculator is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. Never disregard professional medical advice or delay seeking it because of results from this tool.
Inputs
Results
Total Cost (Premium + OOP)
$2,450.00
How to Use This Calculator
- Enter the monthly premium and desired coverage duration in months (confirm the actual legally available duration with the insurer — it's set by federal regulation that has changed materially between administrations, and states can impose tighter limits, so don't assume this calculator's input range reflects what's currently offered where you live).
- Enter the plan deductible, your coinsurance percentage, and the out-of-pocket maximum.
- Enter your expected medical costs during the coverage period.
- Review the total cost (premiums plus out-of-pocket), total premiums, and expected out-of-pocket spending.
- Compare the savings versus no insurance and the break-even medical expense to see when the plan pays off.
How the result changes with Expected Medical Costs
| Expected Medical Costs | Total Cost (Premium + OOP) |
|---|---|
| $1,000.00 | $1,450.00 |
| $1,500.00 | $1,950.00 |
| $3,000.00 | $3,450.00 |
| $5,000.00 | $5,450.00 |
What each input means
- Monthly Premium
- Monthly premium for the short-term health plan.
- Coverage Duration
- Months of coverage needed. The federal maximum initial term and total renewal period for short-term (STLDI) plans has changed between administrations and can also be capped more tightly by state law — confirm the current limit and your state's rule with the insurer before assuming a duration this long is available.
- Plan Deductible
- Short-term plans often have high deductibles ($2,500-$10,000+).
- Your Coinsurance
- Your cost-sharing percentage after meeting the deductible.
- Out-of-Pocket Maximum
- Maximum you pay out of pocket. May be higher than ACA plans.
- Expected Medical Costs
- Anticipated medical expenses during the coverage period.
How this is calculated
Worked example, using the default values
- Identify Input Parameters6 parametersMonthly Premium = 150, Coverage Duration = 3, Plan Deductible = 5000, Your Coinsurance = 20, Out-of-Pocket Maximum = 15000, Expected Medical Costs = 2000 = 6 input(s) provided
- Calculate Total CostTotal Cost2450 = $2,450
- Calculate Total PremiumsTotal Premiums450 = $450
- Calculate Expected Out-of-Pocket2000 = $2,000
Engine last updated . Checked against 2 independently-derived tests — how we verify calculators. Built by Paul Gunder, a software engineer, not a licensed financial, medical, or legal professional.
Frequently Asked Questions
How is a short-term health plan different from an ACA marketplace plan?
Short-term plans are typically medically underwritten (insurers can ask about your health history and deny coverage or specific conditions), are not required to cover the ACA's essential health benefits like maternity or mental health care, and often exclude pre-existing conditions entirely. In exchange, they usually cost less per month than a marketplace plan, but that lower premium generally comes with a higher deductible, more coverage gaps, and less consumer protection.
How long can a short-term health plan actually last?
The maximum initial term and total renewal period for short-term plans is set by federal regulation, which has changed materially between administrations, and individual states can impose their own stricter limits or prohibit these plans entirely. Because the rule you're subject to depends on both the current federal regulation and your state's own insurance code, confirm the actual maximum duration directly with the insurer rather than assuming this calculator's input range reflects what's currently available where you live.
Why is the break-even medical expense useful?
The break-even medical expense shows the exact dollar amount of medical costs at which the plan's total cost (premiums plus out-of-pocket spending) equals what you'd have paid with no insurance at all. If your realistically expected medical costs during the coverage period are well below that break-even point, the plan may not save you money over simply paying out of pocket, especially given its typically high deductible.
Are pre-existing conditions covered under a short-term plan?
Usually not — most short-term plans explicitly exclude coverage for pre-existing conditions, and because they're medically underwritten in most states, an insurer can deny the application entirely based on your health history. This is one of the most important differences from ACA marketplace plans, which cannot deny coverage or charge more based on pre-existing conditions.
When does a short-term plan make the most financial sense?
These plans tend to make the most sense for a genuinely temporary, well-defined coverage gap where you're healthy, don't expect significant medical needs, and specifically need a low-premium bridge — such as between a job ending and new employer coverage starting. They're a poor fit for anyone with an existing health condition, anyone expecting significant medical costs during the gap, or anyone who might need the coverage for longer than the plan's legally permitted term.
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