Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
Insurance saves you (negative = pay out of pocket)
-$5,076
Lifetime cost with insurance
$15,076
Lifetime cost paying yourself
$10,000
Total premiums paid
$9,476
Total reimbursed by insurer
$4,400
Your cost in a bad-luck scenario
$12,276
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How to use this
- 1Enter current monthly premium ($).
- 2Enter annual premium increase (%).
- 3Enter years of coverage remaining (years).
- 4Enter expected routine vet cost ($/year).
- 5Enter cost of a major incident ($).
- 6Enter major incidents expected in that time (count).
- 7Enter annual deductible ($).
- 8Enter reimbursement rate (%).
- 9Enter annual payout limit ($).
- 10Enter does the plan cover routine care?.
- 11Read your insurance saves you (negative = pay out of pocket) on the right — it updates as you type.
- 12Hit Share to keep the scenario or send it to someone.
About this calculator
Pet insurance is a bet about variance, not average cost. Premiums rise steeply with age and by breed, so the lifetime total is far larger than the first-year quote suggests, while claims are concentrated in a small number of expensive events — cruciate ligament surgery, foreign body removal, cancer treatment — that can each run into four or five figures. This calculator projects premiums across the pet's remaining years with an annual increase you set, applies your deductible and reimbursement percentage and annual limit to the vet costs you expect, and compares the result with the alternative of self-insuring by depositing the same premium into a savings account. It reports both the expected-value outcome and the worst-case protection the policy buys, because the honest case for insurance is the second one. Pre-existing conditions are excluded by every insurer, which is why enrolling while the animal is young and healthy is the only way the product works as intended.
Worked example
Using the values the calculator loads with:
Inputs
- Current monthly premium: 45 $
- Annual premium increase: 12 %
- Years of coverage remaining: 10 years
- Expected routine vet cost: 400 $/year
- Cost of a major incident: 6000 $
- Major incidents expected in that time: 1 count
- Annual deductible: 500 $
- Reimbursement rate: 80 %
- Annual payout limit: 15000 $
- Does the plan cover routine care?: No — accident & illness only
Results
- Insurance saves you (negative = pay out of pocket): -$5,076
- Lifetime cost with insurance: $15,076
- Lifetime cost paying yourself: $10,000
- Total premiums paid: $9,476
- Total reimbursed by insurer: $4,400
- Your cost in a bad-luck scenario: $12,276
What each field means
Inputs
- Current monthly premium ($)
- The current monthly premium used in the calculation, measured in $. Starts at 45 $ so you have a working example on load. Accepted range: 5–400 $.
- Annual premium increase (%)
- The annual premium increase used in the calculation, measured in %. Starts at 12 % so you have a working example on load. Accepted range: 0–30 %.
- Years of coverage remaining (years)
- The years of coverage remaining used in the calculation, measured in years. Starts at 10 years so you have a working example on load. Accepted range: 1–20 years.
- Expected routine vet cost ($/year)
- The expected routine vet cost used in the calculation, measured in $/year. Starts at 400 $/year so you have a working example on load. Accepted range: 0–10000 $/year.
- Cost of a major incident ($)
- The cost of a major incident used in the calculation, measured in $. Starts at 6000 $ so you have a working example on load. Accepted range: 0–50000 $.
- Major incidents expected in that time (count)
- The major incidents expected in that time used in the calculation, measured in count. Starts at 1 count so you have a working example on load. Accepted range: 0–6 count.
- Annual deductible ($)
- The annual deductible used in the calculation, measured in $. Starts at 500 $ so you have a working example on load. Accepted range: 0–2000 $.
- Reimbursement rate (%)
- The reimbursement rate used in the calculation, measured in %. Starts at 80 % so you have a working example on load. Accepted range: 50–100 %.
- Annual payout limit ($)
- The annual payout limit used in the calculation, measured in $. Starts at 15000 $ so you have a working example on load. Accepted range: 1000–100000 $.
- Does the plan cover routine care?
- Pick the option that matches your situation — the maths changes per option. Choices: No — accident & illness only, Yes — wellness add-on.
Results
- Insurance saves you (negative = pay out of pocket)
- Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Lifetime cost with insurance
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Lifetime cost paying yourself
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Total premiums paid
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Total reimbursed by insurer
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Your cost in a bad-luck scenario
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
Why do premiums rise so fast?
Most insurers price by the pet's current age, so the premium climbs every year regardless of claims — often 10-15% annually. A quote for a puppy understates the lifetime cost badly, which is why the growth rate matters more than the starting price.
What counts as pre-existing?
Any condition showing signs before coverage started or during the waiting period, including symptoms noted in the record without a diagnosis. Some insurers will cover a curable condition after a symptom-free period; chronic ones are excluded permanently.
Is a savings account a real alternative?
It works if you fund it faithfully and the big bill arrives late. It fails if a $7,000 surgery lands in year two. That asymmetry, not the expected value, is the actual case for buying the policy.
Does the annual limit matter?
Substantially for serious illness. Cancer treatment can exceed a $5,000 annual cap in a single year, so a low limit converts the product from protection into a partial rebate.
Accuracy and limitations
- Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
- Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
- This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Pet Insurance Worth It Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/pet-insurance-worth-it-calculator
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/pet-insurance-worth-it-calculator" target="_blank" rel="noopener">Pet Insurance Worth It Calculator — RevenueLab</a> (2026).</p>
Source: [Pet Insurance Worth It Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/pet-insurance-worth-it-calculator) (2026).