One calculator
$149 a year
Pick any one
For bloggers and businesses
Free calculators for your website.
Add any of our 63 money calculators to your site with one paste. They cite official data, work on phones and update themselves.
Why site owners use them
- Free, no sign-upCopy the code and paste it. That's all.
- Always currentWhen the data or the math changes, every copy updates on its own.
- Fits any pageResizes itself to its content and works on phones.
- Nothing hiddenNo ads, cookies or trackers inside. Your readers' numbers stay in their browser.
- SourcedEvery calculator cites official data and explains its formula.
- Can't break your siteIt runs in its own frame, away from your styles and scripts.
Try one
This is exactly what your readers see: the Mortgage Calculator, embedded.
How to add one
- ChooseFind the calculator that fits your article below.
- CopyPress "Copy code". It's three short lines of HTML.
- PasteInto a Custom HTML block (WordPress), a Code block (Squarespace) or an Embed HTML element (Wix).
All 63 calculators
Around the world
- The Dollar Around the WorldHow far does $100 go in each country?
- Cost of Living CalculatorWhat salary would I need to live the same way in another state?
- Currency ConverterWhat's the exchange rate today, or on any date since 1999?
- Money Transfer Cost CalculatorWhat does sending money abroad really cost?
Then & now
- Inflation CalculatorWhat is a dollar from any year worth today?
Earn
- Paycheck CalculatorHow much of my salary will I actually take home?
- Income Tax CalculatorHow much federal income tax will I owe, or get back?
- Bonus Tax CalculatorHow much of my bonus will I actually keep?
- W-4 Withholding CalculatorIs enough tax coming out of my paycheck?
- Raise vs Inflation CalculatorDid my raise keep up with inflation?
- Overtime CalculatorHow much will I earn with overtime?
- Salary ConverterHow much is my hourly pay per year, and the other way round?
- Year-End Tax CalculatorWhat can I still do before December 31 to cut my 2026 taxes?
- Cost in Work HoursHow many hours do I have to work to buy this?
- Self-Employment Tax CalculatorHow much tax will I owe on self-employment income, and what should I pay each quarter?
- Estimated Tax CalculatorHow much estimated tax should I pay, and by when?
- Freelance Rate CalculatorWhat hourly rate do I need to charge?
Grow
- Compound Interest CalculatorHow much will my money grow, and when will I hit $1 million?
- Savings Interest CalculatorHow much interest will my savings earn?
- CD CalculatorHow much will my CD earn by the time it matures?
- 401(k) CalculatorHow much will my 401(k) be worth when I retire?
- Roth IRA CalculatorHow much will my Roth IRA grow, and how much can I put in?
- HSA CalculatorHow much can I put in an HSA, and what does it save me?
- RMD CalculatorHow much do I have to take out of my IRA this year?
- Capital Gains Tax CalculatorHow much tax will I pay when I sell an investment?
- Retirement CalculatorHow much do I need to retire, and am I on track?
- Social Security Claiming CalculatorShould I claim Social Security at 62, 67 or 70?
- Social Security Earnings Test CalculatorHow much of my Social Security will be withheld if I keep working?
- Social Security COLA CalculatorHow much will my Social Security check go up in January?
- APY CalculatorWhat's the APY of an interest rate, and what will it earn?
- Rule of 72 CalculatorHow long will it take my money to double?
- FIRE CalculatorHow much do I need to retire early, and when will I get there?
- Net Worth CalculatorWhat am I worth, and how do I compare?
Save & spend
- Savings Goal CalculatorHow much do I need to save each month to reach my goal?
- Rent Affordability CalculatorHow much rent can I afford on my income?
- Emergency Fund CalculatorHow much should I keep for emergencies?
- FSA CalculatorHow much should I put in my FSA?
- HDHP vs PPO CalculatorWhich health plan will cost me less next year?
- Subscription Cost CalculatorWhat do my subscriptions really cost per year?
- Tip CalculatorHow much should I tip, and what does each person pay?
- Sales Tax CalculatorHow much sales tax will I pay, or what was the price before tax?
- Discount CalculatorWhat's the sale price after a discount, and how much do I save?
- Unit Price CalculatorIs the bigger pack actually cheaper?
- 50/30/20 Budget CalculatorHow should I split my take-home pay?
- Holiday Budget CalculatorHow much should I save each week for the holidays?
Borrow & repay
- Debt Payoff PlannerSnowball or avalanche: which pays off my debt faster?
- Credit Card Payoff CalculatorHow long will it take to pay off my credit card?
- Debt Consolidation CalculatorWill a consolidation loan save me money on my debt?
- Balance Transfer CalculatorIs a balance transfer worth the fee?
- Student Loan Refinance CalculatorShould I refinance my student loans?
- Mortgage CalculatorWhat will my monthly mortgage payment be?
- Debt-to-Income Ratio CalculatorWhat's my debt-to-income ratio, and is it low enough for a loan?
- Home Affordability CalculatorHow much house can I afford?
- Rent vs Buy CalculatorIs it better to rent or buy a home?
- Car Affordability CalculatorHow much car can I afford on my income?
- Student Loan CalculatorWhat will my student loan payments be, and how fast can I pay them off?
- Mortgage Points CalculatorShould I pay points to lower my mortgage rate?
- Home Sale Proceeds CalculatorHow much will I walk away with when I sell my house?
- Refinance CalculatorWill refinancing my mortgage save me money?
- HELOC CalculatorHow much can I borrow against my home, and what will it cost?
- Car Loan CalculatorWhat will a car loan cost me each month?
- Personal Loan CalculatorWhat will a personal loan really cost, fees included?
- Car Loan Refinance CalculatorWill refinancing my car loan save money?
Free use comes with two rules: keep the "by Dollars World" credit line visible, and don't change or misrepresent the results.
Licenses for businesses
For credit unions, banks, realtors, mortgage brokers and financial advisors who want the calculators to look like their own: no credit line, your brand color and your own starting numbers.
Up to 10 calculators
$590 a year
Mix and match
Every calculator
$990 a year
All 63 today, plus new ones as we add them
- No "by Dollars World" credit line
- Your brand color on buttons and results
- Your own starting numbers, such as your local home prices or rates
- The same data updates and fixes as the free version
Email us about a licenseAnnual license for one website. We reply with an invoice; sales tax or VAT may apply.
Questions
Is it really free?
Yes. Use as many calculators as you like, on as many pages as you like, as long as the "by Dollars World" credit line stays visible under each one.
Will it slow my page down?
No. The calculator loads only when a reader scrolls to it, and it runs in its own frame, so it can't affect the rest of your page or your styles.
Does it track my readers?
No. There are no ads, cookies or trackers inside the calculator, and the numbers your readers type stay in their browser.
Where do the numbers come from?
Each calculator cites its sources, such as the Bureau of Labor Statistics, the IRS and the World Bank. Our methodology page explains the data and formulas, and we note every correction publicly.
Can I change how it looks?
The free version fits the width of your page. With a license, it takes your brand color and your own starting numbers, and the credit line goes.
Does it work on WordPress, Squarespace and Wix?
Yes. Paste the code into a Custom HTML block (WordPress), a Code block (Squarespace) or an Embed HTML element (Wix).
Anything else? Email hello@dollarsworld.com, or read our data and formulas.