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Add professional, auto-resizing calculators to any site with one line of code. Free forever. No API key needed.
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Monthly payment, total interest, principal vs interest breakdown.
<div data-calcverse="mortgage"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/mortgage" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Monthly payment, total interest, and full cost breakdown.
<div data-calcverse="loan"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/loan" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Final balance, total interest earned, and principal vs interest split.
<div data-calcverse="compound-interest"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/compound-interest" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Portfolio value, contributions vs market gains, adjustable return rate.
<div data-calcverse="investment"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/investment" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Projected balance, 4% rule target, on-track verdict, monthly income.
<div data-calcverse="retirement"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/retirement" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Annual, monthly, bi-weekly, weekly, daily, and hourly pay breakdown.
<div data-calcverse="salary"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/salary" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
BMI score, weight category, scale bar, and healthy weight range.
<div data-calcverse="bmi"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/bmi" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Daily calorie target, TDEE, and protein/carb/fat macros.
<div data-calcverse="calorie"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/calorie" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Tip amount, total bill, and per-person split.
<div data-calcverse="tip"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/tip" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
X% of Y, X is what % of Y, and % change — all modes.
<div data-calcverse="percentage"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/percentage" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Length, weight, temperature, volume & speed — all conversions in one widget.
<div data-calcverse="unit-converter"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/unit-converter" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
How long to save or how much per month to reach any goal.
<div data-calcverse="savings-goal"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/savings-goal" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Avalanche vs snowball — debt-free date and total interest saved.
<div data-calcverse="debt-payoff"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/debt-payoff" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Total ROI, annualized return (CAGR), net profit, and investment multiple.
<div data-calcverse="roi"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/roi" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Purchasing power using US CPI data 1913–2024. Total & annual inflation rate.
<div data-calcverse="inflation"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/inflation" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
28/36 rule — max home price, monthly payment, DTI ratios, and PMI check.
<div data-calcverse="home-affordability"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/home-affordability" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Best bedtimes and wake-up times based on 90-minute sleep cycles.
<div data-calcverse="sleep"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/sleep" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Due date, current week, trimester, progress bar, and upcoming milestones.
<div data-calcverse="pregnancy"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/pregnancy" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Daily calorie target, TDEE, weekly loss rate, and weeks-to-goal timeline.
<div data-calcverse="weight-loss"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/weight-loss" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Daily hydration needs in oz, liters, cups, and bottles with a schedule.
<div data-calcverse="water-intake"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/water-intake" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Find pace, finish time, or distance. Includes 5K–marathon race projections.
<div data-calcverse="pace"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/pace" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Break-even units, contribution margin, margin of safety, and current profit.
<div data-calcverse="break-even"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/break-even" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Fertile window, ovulation date, cycle calendar, and next period estimate.
<div data-calcverse="ovulation"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/ovulation" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Net pay after federal tax, state tax, and FICA — all 50 states.
<div data-calcverse="take-home-pay"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/take-home-pay" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Max credit line (85% CLTV), draw-period interest, and repayment payment.
<div data-calcverse="heloc"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/heloc" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Monthly benefit at any claiming age 62–70, vs-FRA comparison, and break-even.
<div data-calcverse="social-security"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/social-security" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Dividend reinvestment vs cash — final portfolio value over any time horizon.
<div data-calcverse="drip"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/drip" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
529 plan projections — shortfall, monthly needed, with 4 college cost presets.
<div data-calcverse="college-savings"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/college-savings" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Compare two offers side by side — base salary, bonus, 401k match, and total compensation.
<div data-calcverse="job-offer"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/job-offer" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Self-employment tax, quarterly estimated payments, and effective rate for 1099 workers.
<div data-calcverse="freelancer-tax"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/freelancer-tax" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Coast FIRE number, progress bar, and how much compound growth does the rest of the work.
<div data-calcverse="coast-fire"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/coast-fire" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
5-year total cost of ownership comparison — purchase price, fuel, maintenance, and tax credits.
<div data-calcverse="ev-vs-gas"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/ev-vs-gas" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
DIME method coverage calculator — debt, income, mortgage, and education costs.
<div data-calcverse="life-insurance"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/life-insurance" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Cost-of-living salary comparison across 24 US cities. Equivalent salary and purchasing power.
<div data-calcverse="geo-salary"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/geo-salary" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Add your subscriptions, see monthly/annual cost, and 10-year opportunity cost at 7% growth.
<div data-calcverse="subscription-audit"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/subscription-audit" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Standard vs accelerated payoff — interest saved and months cut by adding extra payments.
<div data-calcverse="student-loan"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/student-loan" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
10% penalty + federal tax breakdown — see exactly how much you keep after an early withdrawal.
<div data-calcverse="401k-withdrawal"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/401k-withdrawal" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Monthly cash flow, cap rate, and cash-on-cash return for any rental property deal.
<div data-calcverse="rental-roi"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/rental-roi" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Side-by-side comparison — which account wins based on your current and retirement tax brackets.
<div data-calcverse="roth-vs-traditional"></div> <script src="https://calcverseai.com/embed.js" async></script>
<iframe src="https://calcverseai.com/embed/roth-vs-traditional" width="100%" height="520" frameborder="0" style="border-radius:12px"> </iframe>
Is it really free?
Yes, 100% free forever. No account, no API key, no usage limits.
Will it slow down my site?
No. Iframes load lazily and independently from your page. Your site's performance is unaffected.
Can I customize the appearance?
The calculators use CalcVerseAI's dark theme for consistency. You can control the width via the data-width attribute.
Does it auto-resize?
Yes. The script tag version uses postMessage to automatically adjust the iframe height. No scrollbars.
What CMS or platforms are supported?
Any platform that allows custom HTML — WordPress, Webflow, Squarespace, Wix, Ghost, Substack (via embed), custom sites, etc.
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