For website owners

Embed Our Free Calculators

Run a website or blog? Drop any of our most popular calculators straight into your pages with one snippet. Free to use — the small "Powered by SnagATool" link at the bottom is the only attribution we ask for.

How it works

Find a calculator below and click Copy code.
Paste the snippet into your page's HTML where you want the calculator to appear.
Done — the calculator renders live on your site, fully interactive, and looks great on mobile.

Embeds are lightweight, load lazily so they won't slow your page, and never show ads inside the embedded calculator itself.

Available calculators

Free Mortgage Calculator

Free mortgage calculator: enter your loan amount, interest rate, and term to see your monthly payment, total interest, and payoff details...

Open the full calculator · Preview the embed version

<iframe src="https://snagatool.com/embed/mortgage-calculator.html" width="100%" height="520" style="border:0;max-width:680px" loading="lazy" title="Mortgage Calculator by SnagATool"></iframe>

Free Compound Interest Calculator

Free compound interest calculator: enter your principal, rate, compounding frequency, and monthly contributions to see your savings grow ...

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<iframe src="https://snagatool.com/embed/compound-interest-calculator.html" width="100%" height="600" style="border:0;max-width:680px" loading="lazy" title="Compound Interest Calculator by SnagATool"></iframe>

Free BMI Calculator

Free BMI calculator with imperial and metric units. Enter your height and weight for an instant body mass index result and category. No s...

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<iframe src="https://snagatool.com/embed/bmi-calculator.html" width="100%" height="600" style="border:0;max-width:680px" loading="lazy" title="BMI Calculator by SnagATool"></iframe>

Free Tip Calculator

Free tip calculator: enter your bill, pick a tip percentage, and split the total per person instantly. No signup, works on mobile.

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<iframe src="https://snagatool.com/embed/tip-calculator.html" width="100%" height="520" style="border:0;max-width:680px" loading="lazy" title="Tip Calculator by SnagATool"></iframe>

Free Loan Calculator

Calculate auto and personal loan payments: monthly cost, total interest, and payoff timeline from any APR and term. Free, no signup.

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<iframe src="https://snagatool.com/embed/loan-calculator.html" width="100%" height="520" style="border:0;max-width:680px" loading="lazy" title="Loan Calculator by SnagATool"></iframe>

Debt Payoff Calculator

Free debt payoff calculator: enter your debts and compare snowball vs avalanche strategies — see your debt-free date and total interest f...

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<iframe src="https://snagatool.com/embed/debt-payoff-calculator.html" width="100%" height="760" style="border:0;max-width:680px" loading="lazy" title="Debt Payoff Calculator by SnagATool"></iframe>

Paycheck Calculator

Free paycheck calculator: enter gross pay and frequency to estimate tax withholding and net take-home pay per paycheck.

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<iframe src="https://snagatool.com/embed/paycheck-calculator.html" width="100%" height="640" style="border:0;max-width:680px" loading="lazy" title="Paycheck Calculator by SnagATool"></iframe>

Retirement Calculator

Free retirement calculator: enter current savings, monthly contributions, and expected return to project your nest egg with compound growth.

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<iframe src="https://snagatool.com/embed/retirement-calculator.html" width="100%" height="580" style="border:0;max-width:680px" loading="lazy" title="Retirement Calculator by SnagATool"></iframe>

Free Calorie Calculator

Estimate your daily calorie needs with the Mifflin-St Jeor equation. BMR, maintenance calories, and weight-loss targets by activity level.

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<iframe src="https://snagatool.com/embed/calorie-calculator.html" width="100%" height="660" style="border:0;max-width:680px" loading="lazy" title="Calorie Calculator by SnagATool"></iframe>

Free GPA Calculator

Free GPA calculator: add your courses with grades and credit hours to compute your GPA on a 4.0 scale instantly. No signup required.

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<iframe src="https://snagatool.com/embed/gpa-calculator.html" width="100%" height="680" style="border:0;max-width:680px" loading="lazy" title="GPA Calculator by SnagATool"></iframe>

Free Unit Converter

Free unit converter: switch between metric and imperial for length, weight, and temperature. Meters to feet, kg to pounds, Celsius to Fah...

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<iframe src="https://snagatool.com/embed/unit-converter.html" width="100%" height="520" style="border:0;max-width:680px" loading="lazy" title="Unit Converter by SnagATool"></iframe>

Free Percentage Calculator

Free percentage calculator: find X% of Y, what percent one number is of another, and percent increase or decrease. Three calculators in o...

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<iframe src="https://snagatool.com/embed/percentage-calculator.html" width="100%" height="640" style="border:0;max-width:680px" loading="lazy" title="Percentage Calculator by SnagATool"></iframe>