Dental & Vision Insurance Calculator
Two policies, and the care you expect this year
Your result will appear here
Fill in the fields on the left and this updates as you type.
Know what this estimate is based on
- Jurisdiction
- General mathematical model
- Scope and limitations
- Educational estimate only. Confirm the assumptions, current rules, fees, and rounding that apply to your situation before making a decision.
- Source links checked
- Jul 30, 2026
Built and regression-tested by Smart Tools Lab. It has not been individually reviewed by a licensed financial, tax, or legal professional.
How to use
- 01
Enter the dental premium a month, then the plan's annual maximum and deductible. The annual maximum is the number that decides whether the policy helps in a bad year, and it is usually far smaller than people expect.
- 02
Enter the share the plan pays at each of the three tiers. A common structure is 100% of preventive care, 80% of basic work and 50% of major work, but yours are fields because plans differ.
- 03
Enter the care you expect at each tier this year. Preventive means cleanings, exams and x-rays; basic means fillings and extractions; major means crowns, bridges and root canals.
- 04
Enter any waiting period on major work in months. During it the plan pays nothing towards that tier, which is why buying a policy the month a problem appears rarely helps.
- 05
Do the same for vision — premium, the yearly allowance for an exam and materials, and the care you expect — then read the schedule, which reruns the dental policy at six levels of care.
Formula
The dental side is worked out tier by tier, then capped: Plan pays preventive = preventive care × preventive share (usually outside the deductible) Plan pays basic = (basic care − deductible applied) × basic share Plan pays major = (major care − any deductible left) × major share, or zero while a waiting period runs Plan pays = the smaller of (the three added together, the annual maximum) Refused by the maximum = the three added together − Plan pays Your year with the policy = premium × 12 + all the care − Plan pays Your year without it = all the care The policy saves = without − with The break-even is found by rerunning the same mix of care at rising levels until the saving turns positive. Vision is simpler, because there is no coinsurance and no maximum: Your year with the policy = premium × 12 + the part of the care above the allowance Your year without it = the care.
Example
Take a dental policy at $45 a month with a $1,500 annual maximum, a $50 deductible, and shares of 100% preventive, 80% basic and 50% major with a 12-month wait on major work. Expect $400 of preventive care, $600 of basic and $2,500 of major, and add a vision policy at $15 a month paying a $250 allowance against $450 of expected care. The dental plan pays $840 — all of the preventive care, and 80% of the basic work after the deductible — but nothing towards the major work, because the waiting period has not ended. So the year costs $3,200 with the policy against $3,500 without, a saving of $300, and the waiting period itself accounts for $660 of lost help. Nothing is refused by the annual maximum this year, because $840 is well inside $1,500. The break-even is $2,310 of dental care. Vision costs $380 with the policy against $450 without, saving $70, so the two policies together save $370. The alternate without a waiting period is a different page: the plan's share rises to $2,090, the $1,500 maximum refuses $590 of it, the dental year falls to $2,540, the saving rises to $960, the break-even drops to $980 and both policies together save $1,030. That gap between $370 and $1,030 is what a single line in the plan document is worth.
Definitions
- Annual maximum
- The most a dental plan will pay in one year. Once reached the plan pays nothing more, whatever the coinsurance percentages say, and the rest of the bill is yours.
- Coinsurance tier
- The share the plan pays for a class of treatment. Plans usually split care into preventive, basic and major, often at 100%, 80% and 50%, with the share falling as the treatment gets more expensive.
- Waiting period
- Months at the start of a policy during which a tier — normally major work — is not covered at all. Six to twelve months is common, and premiums paid during it buy nothing for that tier.
- Vision allowance
- A fixed yearly amount a vision plan pays towards an exam and materials such as frames, lenses or contacts. Unlike dental cover it works as a flat credit rather than a percentage.
- Negotiated rate
- The discounted price a network dentist charges an insured patient. It is usually below the list price quoted to a cash patient, so a policy can lower a bill before it pays any share of it.
Good to know
Why dental insurance behaves nothing like medical insurance
Medical insurance is built to stop a catastrophe: you pay a deductible and coinsurance up to an out-of-pocket maximum, and above that the plan pays everything. Dental insurance is built the other way round. It pays generously for small, cheap, predictable care and stops paying exactly when the bills get large. The mechanism is the annual maximum, which on the page's example is $1,500 — the most the plan will pay in a year, whatever the coinsurance percentages promise. A plan paying 50% of major work does so only until it reaches that ceiling. On a $10,000 reconstruction it will pay $1,500 and no more, which is a long way from half. Someone expecting dental insurance to behave like medical insurance in a bad year has misunderstood the product. The structure underneath is usually three tiers: preventive care such as cleanings, exams and x-rays, most often covered at 100% and outside the deductible; basic work such as fillings and extractions, often at 80%; and major work such as crowns, bridges and root canals, often at 50%. The page uses those as defaults but makes each a field, because plans vary and the document is what decides. On the example the plan pays $840 — all of the preventive care and 80% of the basic work after a $50 deductible — so the year costs $3,200 with the policy against $3,500 without, saving $300. Adding the vision policy's $70 gives $370 for both. The break-even is $2,310 of dental care in the year. Below that level the premiums cost more than the plan hands back, which is why the honest answer for someone who needs two cleanings a year and nothing else is often that the policy is not worth buying.
Waiting periods, and what one line in the document is worth
A waiting period is a stretch at the start of a policy during which a class of treatment is not covered at all. Six to twelve months on major work is common, and during it the plan pays nothing towards crowns, bridges or root canals however many premiums you have handed over. The effect on a first year is larger than almost any other term in the contract. On the page's example a twelve-month wait costs $660 compared with the same policy without one, because the entire $2,500 of expected major work falls outside cover. Remove the wait and the plan's share of the same care rises from $840 to $2,090, the break-even level of care drops from $2,310 to $980, the dental saving rises from $300 to $960, and the two policies together go from saving $370 to saving $1,030. That is what a single clause is worth. Waiting periods exist because dental needs are visible and predictable in a way that medical emergencies are not. Without them, people would buy a policy the month a dentist says a crown is needed, claim, and cancel — and the pricing would collapse. Knowing that tells you how to use the page. If the work can be scheduled after the waiting period ends, do that and the policy behaves as the rest of the analysis describes. If it cannot, the first year is premiums plus very nearly the whole bill, and buying cover for work you already know you need is rarely the bargain it appears. Notice too what happens when the waiting period ends: on the alternate, removing it pushes the plan's share to $2,090 and the $1,500 annual maximum then refuses $590 of it. One constraint gives way and the next one binds.
Vision cover is a prepayment, and easier to judge
Vision insurance is built differently enough that the same reasoning does not apply. There is no coinsurance and no annual maximum to worry about; there is an allowance. The plan pays a fixed amount towards an exam and materials — frames, lenses or contacts — each year, and you pay anything above it. On the page's example the allowance is $250 against $450 of expected care for $180 of premium, so the year costs $380 with the policy and $450 without, saving $70. That structure makes it close to a prepayment for a known purchase rather than insurance against a risk. The consequence is that the arithmetic is unusually easy to check before you buy. Add the allowance to any member discount the plan offers on the balance, compare that with twelve months of premium, and the answer falls out. A household that reliably buys new glasses or a year of contact lenses every year will usually find the policy roughly break-even to mildly positive. A household where nobody's prescription has changed in three years is buying an allowance it will not use, and the eye exam alone rarely justifies the premium. Two practical caveats. Frequency limits are common — an allowance for lenses every twelve months and frames every twenty-four is a typical pattern — so a plan that looks generous annually may not be. And because vision plans steer you towards network providers and specific frame collections, the real value depends on whether you like what is available at the allowance price. As with dental, the plan document decides all of it. The page prices the terms you type, and those terms should come off the summary of benefits rather than from memory.
The prices this page cannot see
Two real effects sit outside this calculation and can move the answer in opposite directions, so it is worth understanding both before treating any figure here as settled. The first is the negotiated rate. A dental plan agrees prices with the dentists in its network, and those prices are usually below the list price a practice quotes to someone paying cash. That means a policy can lower a bill before it pays any share of it at all: the same crown can simply cost less because you are insured. This page compares the prices you type at both routes, so it cannot see that discount, and to the extent it exists the policy is better than the page suggests. If you want to capture it, ask the practice for both the insured and the uninsured price for the work you expect. The second effect runs the other way. Many practices offer their own discount for paying cash, sometimes a membership plan of their own, precisely because it saves them the administrative cost of billing an insurer. Where that discount is substantial, the uninsured route is cheaper than the list price implies, and the policy is worse than the page suggests. Beyond prices, the plan document governs everything the tiers hide: frequency limits on cleanings, missing-tooth clauses excluding teeth already absent when cover began, whether a particular procedure is classified as basic or major, and whether preventive care really does sit outside the deductible as this page assumes by convention. Orthodontics is usually handled separately again, under a lifetime maximum rather than the annual one, which is why braces are priced on their own page. None of this is advice about what dental or vision care you need; that is a conversation with a clinician, and the plan documents decide what any of it will cost.
Frequently asked questions
Is dental insurance worth it?
It depends on how much work you need and where the annual maximum sits. At the page's example — $45 a month, a $1,500 annual maximum, a $50 deductible, tiers of 100/80/50, and expected care of $400 preventive, $600 basic and $2,500 major with a 12-month wait on major work — the year costs $3,200 with the policy against $3,500 without, so it saves $300. Add the $70 the vision policy saves and both together save $370. The break-even is $2,310 of dental care in the year: below that the premium costs more than the plan pays back.
What is a dental annual maximum?
The most the plan will pay in a year, whatever the coinsurance percentages say. It is the ceiling that decides a bad year. On the example's alternate with no waiting period, the plan's share of the same care comes to $2,090, but the $1,500 maximum refuses $590 of it and you pay that yourself. A policy paying 50% of major work stops paying at the maximum however large the treatment, so on expensive work the maximum, not the percentage, is the number that matters.
How does a waiting period on major work change things?
In the first year it changes almost everything. Until the wait ends the plan pays nothing towards crowns, bridges or root canals. On the example a 12-month wait costs $660 compared with the same policy without one, and it pushes the break-even level of care from $980 up to $2,310. Removing the wait lifts the total saving from $370 to $1,030. If the work can be scheduled after the waiting period, do that; if it cannot, the first year is premiums plus nearly the whole bill.
Is vision insurance worth it?
It is easier to judge than dental, because there is no coinsurance and no annual maximum — just an allowance. On the example it pays $250 towards $450 of expected care for $180 of premium a year, so the year costs $380 with the policy against $450 without, saving $70. That makes it close to a prepayment: it pays back when the allowance and any discount beat the premium, and little else changes the answer. A year in which nobody needs new glasses is a year the allowance goes unused.
Why might the real answer be better than this page suggests?
Because of negotiated rates. A dental plan's network price is usually below the list price a practice quotes a cash patient, so the same care can cost less with a policy even before the plan pays anything. This page compares the prices you type at both routes, so it cannot see that discount. Many practices also offer their own discount for paying cash, which works the same way from the other direction. Ask for both prices before deciding.
Does the deductible apply to cleanings?
Usually not. Most plans pay preventive care outside the deductible and often at 100%, which is why this page applies the deductible to basic and major work first. That is a convention rather than a rule, and your plan document decides it — along with frequency limits on cleanings, missing-tooth clauses, and whether a particular procedure counts as basic or major. Those definitions move the answer more than the headline percentages do.
What about braces?
Orthodontics is usually handled separately, under its own lifetime maximum rather than the yearly one this page applies, and many plans cover it only for children. Because the structure is different, it is not included in the tiers here. The braces calculator prices that case properly, including the payment plans practices offer.