Financial Calculators Built on Today's Real Rates
15 free calculators for mortgages, savings, CDs, retirement and debt. Every one starts from the MonitorBankRates average rate for today, nationally or in your state, instead of a made up sample number.
MonitorBankRates offers 15 free financial calculators covering mortgages, savings, CDs, retirement, debt, and more. Whether you are comparing CD rates, sizing up a refinance, or figuring out how much house you can afford, these tools give you fast, accurate numbers without the sales pressure of a bank rep.
Every calculator is free to use, requires no signup, and is built around the same standard formulas your bank uses. The difference is the inputs: the rate fields default to today's averages, a state picker loads local averages and Census housing costs, and each page shows a worked example recalculated with the latest data. Pair them with our current CD rates, mortgage rates, and savings rates for a full picture of where your money should go.
As of September 13, 2026, the MonitorBankRates national average rate is 6.67% on a 30 year fixed mortgage and 6.25% on a 15 year fixed, 2.83% APY on a 12 month CD and 2.76% on a 60 month CD, 1.99% APY on high yield savings, and 11.62% on credit cards. These averages are the starting point in every calculator below.
Mortgage Calculator
Full monthly payment with taxes, insurance, HOA and PMI. Starts from today's average rate and your state's median home price, tax and insurance costs.
Refinance Calculator
Compare your loan with a refinance at today's average rate: new payment, break even point and lifetime interest saved.
Affordability Calculator
How much house you can afford at three lending tiers, with taxes, insurance and PMI included and your state's costs loaded.
Rent vs. Buy
Year by year net cost of owning versus renting, with closing and selling costs, appreciation and invested savings, at today's rate.
CD Calculator
Interest at maturity for any term, defaulting to today's average CD rate for that term nationally or in your state.
CD Ladder Calculator
Build a ladder where each rung uses today's average rate for its own term, with maturity dates and a comparison against one long CD.
CD vs. HYSA
Compare a CD with a high yield savings account at today's average rates, including the savings rate at which the two tie.
CD Early Withdrawal
The cost of breaking a CD before maturity, and whether a new CD at today's average rate recovers the penalty.
Savings Calculator
Compound growth with monthly deposits at today's average high yield savings rate, compared with a standard savings account.
Savings Goal Calculator
The monthly deposit needed to reach a goal on time, or how long a deposit takes, at today's average savings rate.
Retirement Planner
Project your nest egg, test a withdrawal rate, see how long the money lasts and what closes any gap.
Investment Calculator
Portfolio growth with fees and inflation, next to what the same deposits would earn in savings or a CD at today's averages.
Budget Calculator
Income against expenses with a 50/30/20 check, housing share of income, and what your surplus grows into at today's savings rate.
Debt Consolidation
Roll credit cards and loans into a home equity, HELOC or personal loan at today's average rates and see the real interest saved.
Credit Card Payoff
Months to debt free at today's average card APR, versus the minimum payment, a balance transfer or a personal loan.
Choosing the Right Calculator
Not sure where to start? Use the goal you are working toward to pick the right tool. Most decisions only need one or two calculators, so pair them for the full picture.
Buying or Refinancing a Home
Start with affordability to set your price range, then run specific scenarios on your top picks.
- Affordability Calculator: what price range fits your income
- Mortgage Calculator: full monthly payment and amortization
- Rent vs. Buy: the long term math
- Refinance Calculator: break even on a refi
Growing Your Savings
Pick the calculator that matches your timeline and risk tolerance, from fully liquid to fully locked in.
- Savings Calculator: project compound growth
- Savings Goal Calculator: monthly deposit to hit a target
- CD Calculator: fixed rate CD returns
- CD vs. HYSA: compare locked versus liquid
Paying Off Debt
The fastest path out of debt depends on your debt type. Start with payoff to see your timeline, then explore consolidation if rates favor it.
- Credit Card Payoff: avalanche or snowball method
- Debt Consolidation: home equity or personal loan to lower payments
- Budget Calculator: find the cash flow to make extra payments
Planning for Retirement
Combine the retirement and investment tools to project your nest egg, then layer in savings goals to fund nearer term costs.
- Retirement Planner: nest egg and withdrawal rate analysis
- Investment Calculator: portfolio growth projections
- CD Ladder Calculator: build retirement income predictability
Comparing Banks and Rates
Once you know what you need, our rate pages show you who is offering the best APYs and rates right now.
Avoiding Common Mistakes
The numbers only matter if the assumptions are honest. Watch for these pitfalls when running any calculation.
- CD Early Withdrawal: check it before locking up cash you will need
- Use APY, not the interest rate, when comparing savings products
- Include property taxes and insurance in mortgage estimates (the mortgage calculator does this for you)
- Subtract inflation, about 2% to 3%, from long term return assumptions
Frequently Asked Questions
Does the mortgage calculator include taxes and insurance?
Yes. The mortgage calculator estimates the full monthly payment: principal, interest, property taxes, homeowners insurance, HOA dues and private mortgage insurance when the down payment is under 20%. Pick your state and it loads the Census median property tax bill and insurance cost where you live along with the MonitorBankRates average mortgage rate for your state.
How much house can I afford?
Most lenders follow the 28/36 rule: your housing payment should not exceed 28% of your gross monthly income and your total debt payments should stay below 36%. The Affordability Calculator solves for the home price that fits those limits with taxes, insurance and PMI included, and shows moderate and aggressive tiers as well.
Is it better to rent or buy a home right now?
It depends on how long you plan to stay. Buying involves closing costs up front and selling costs at the end that take several years to recoup through equity and appreciation. The Rent vs. Buy calculator compares the net cost of each path year by year at today's average mortgage rate and finds the year buying pulls ahead.
When should I refinance my mortgage?
Refinancing usually makes sense when you can lower your rate by at least half a point to a full point and you will stay past the break even point, the month when your monthly savings have covered the closing costs. The Refinance Calculator defaults the new rate to today's MonitorBankRates average (6.67% on a 30 year loan) so you can see immediately whether a refinance pays off.
How does compound interest help my savings grow?
Compound interest means you earn interest on your initial deposit plus the interest you have already earned. Over time this snowball effect makes savings grow much faster than simple interest would. The Savings Calculator shows the effect year by year at today's average high yield savings rate.
What is the difference between interest rate and APY?
The interest rate is the base rate you are paid. The annual percentage yield (APY) is higher because it accounts for compounding, meaning how often interest is added to your balance. APY is the number to use when comparing savings accounts or CDs, and it is what MonitorBankRates averages report for deposit products.
Should I open a CD or a high yield savings account?
It depends on whether you need access to the money. CDs lock in a fixed rate but charge a penalty for early withdrawal; high yield savings accounts are fully liquid but the rate can change. Today the MonitorBankRates average is 2.83% on a 12 month CD and 1.99% on high yield savings. The CD vs. HYSA Calculator shows the dollar difference for your deposit and term.
How do I figure out how much to save each month for a goal?
Use the Savings Goal Calculator. Enter your target amount, current balance, time frame and the APY of your account, or keep today's average savings rate, and it returns the monthly deposit needed to reach the goal on schedule. If the number is too high you can extend the time frame or move to a higher yield account.
What happens if I have to break a CD before maturity?
Banks charge an early withdrawal penalty, typically equal to 3 to 12 months of interest depending on the term. If you withdraw before you have earned that much interest, the penalty comes out of your principal. The CD Early Withdrawal Penalty Calculator shows the exact dollar impact and whether a new CD at today's average rate would recover it.
Is debt consolidation a good idea?
Consolidating credit card debt into a home equity loan, HELOC or personal loan can cut your monthly payment because those rates are far below credit card rates (today's averages: 11.62% on credit cards versus 6.75% on home equity loans). A home equity product turns unsecured debt into debt secured by your home, so the Debt Consolidation Calculator shows both the payment change and the total interest over the life of each option.
Where do the rates in these calculators come from?
Every rate default is a MonitorBankRates average computed each day from the rates published by more than 8,000 banks and credit unions, nationally and for every state. Home values, incomes, property taxes and insurance costs come from U.S. Census Bureau surveys. The date of the rate data is shown on each calculator.
Financial Glossary
Quick definitions for the terms you will see across our calculators.
- APY (Annual Percentage Yield)
- The real annual return on a savings account or CD, including the effect of compounding. Always compare savings products by APY, not interest rate.
- APR (Annual Percentage Rate)
- The yearly cost of a loan, including interest and fees, expressed as a percentage. APR is how you compare mortgage, personal loan and credit card products.
- DTI (Debt to Income Ratio)
- Your total monthly debt payments divided by gross monthly income. Most mortgage lenders prefer a DTI of 36% or less.
- LTV (Loan to Value Ratio)
- Your loan amount divided by the home's value. A 20% down payment gives an 80% LTV, the threshold to avoid PMI on most conventional loans.
- Principal
- The original amount of a loan or deposit, before any interest. Each mortgage payment includes principal and interest portions.
- Compound Interest
- Interest earned on both the original principal and the accumulated interest from prior periods. The engine behind long term wealth.
- Amortization
- The process of paying off a loan through fixed installments. Early payments go mostly to interest; later payments shift toward principal.
- FDIC Insurance
- Federal protection covering bank deposits up to $250,000 per depositor, per institution. Credit unions get equivalent NCUA insurance.
- Break Even Point
- The month a refinance or balance transfer starts saving you money, after closing costs or fees are recouped.
- Early Withdrawal Penalty
- The fee charged for taking money out of a CD before maturity. Typically 3 to 12 months of interest depending on the term length.
- MBR Average Rate
- The MonitorBankRates national or state average for a product, computed each day from every rate published by the banks and credit unions we track. The default rate in each calculator.
- PITI
- Principal, interest, taxes and insurance: the four parts of a full monthly mortgage payment, all included in the mortgage calculator.
How These Calculators Work
Behind every result is a transparent formula and real market data. Here is how we keep these tools accurate, useful, and free.
Standard Industry Formulas
Every calculator uses the same time value of money formulas your bank, lender, or financial advisor uses. We do not make up math; we make the standard math accessible and show the schedule behind each answer.
Live Average Rates, Updated Daily
MonitorBankRates tracks CD, savings, money market, mortgage, home equity, personal loan and credit card rates every day across more than 8,000 banks and credit unions and computes national and state averages from every published rate. Those averages are the defaults in each calculator, and each page shows the date of the data.
Census Housing Data by State and City
The mortgage, affordability, rent vs. buy and debt consolidation tools load median home values, household incomes, property tax bills and homeowners insurance costs from U.S. Census Bureau surveys for the state or city you pick, so the estimate reflects where you live.
No Hidden Sales Pitch
These calculators are completely free. We do not sell your data or push you toward any single product. Our business is helping you find the best rates; the calculators help you decide what to do with them.
Calculator Limitations
Results are estimates based on the inputs you provide and assume fixed rates over the full term. Averages are market wide figures, not offers; the rate you are quoted will differ. Always verify with the bank or lender before making a final decision.
Inflation and Tax Notes
Most calculators show nominal returns and offer an inflation input for results in today's dollars. Interest is typically taxable as ordinary income, and the retirement and investment tools note where taxes change the picture.
