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Free Mortgage Calculator — instant results

Calculate your monthly mortgage payment, amortization schedule, tip splits, and percentages — all free, instant, and no ads.

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Bill Details
$
%
0%50%
1
people

Enter your bill amount to calculate the tip and total.

Standard Tipping Guide
Exceptional service25%+
Great service20%
Good service18%
Average service15%
Poor service10%
Tipping by Service Type
Sit-down restaurant15–20%
Food delivery10–20%
Bartender$1–2 per drink
Hair salon / spa15–20%
Taxi / rideshare10–15%
Hotel housekeeping$2–5 per night
Pizza delivery$3–5 minimum
Loan Details
$
$50K$2M
$
%
%
0%20%
$
$

Enter your loan details and click Calculate to see your monthly payment breakdown.

Percentage Type
%

Enter values above

Enter values above

Enter values above

%

Enter values above

$
%
people

Enter bill amount above

$
% off

Enter price and discount above

How Percentages Work

Percentages express a number as a fraction of 100. The word "percent" comes from the Latin per centum — meaning "by the hundred."

Common Formulas
X% of Y = (X ÷ 100) × Y
X is what % of Y = (X ÷ Y) × 100
% Change = ((New − Old) ÷ Old) × 100
Tip Amount = Bill × (Tip% ÷ 100)

Select a calculator type on the left to get started. All calculations happen instantly in your browser — nothing is sent to any server.

How to use this free mortgage calculator

Enter your home price, down payment, loan term, and interest rate to instantly calculate your monthly mortgage payment. Use the sliders to quickly compare different scenarios.

Add your estimated property tax and homeowner's insurance to see your true total monthly housing cost — also known as PITI (Principal, Interest, Taxes, Insurance).

The amortization schedule shows exactly how each payment is split between principal and interest over the life of your loan.

Mortgage calculator formula

M = P[r(1+r)^n] / [(1+r)^n − 1]

M = Monthly payment
P = Loan amount (price − down payment)
r = Monthly interest rate (annual ÷ 12)
n = Total number of payments (years × 12)

Our free mortgage calculator uses this standard amortization formula to give you accurate monthly payment estimates instantly.

15-year vs 30-year mortgage

A 30-year mortgage has lower monthly payments but you pay significantly more interest over the life of the loan. A 15-year mortgage costs more per month but saves tens of thousands in interest.

Example on a $400,000 loan at 7%:

30-year: $2,661/mo — $558,036 total interest
15-year: $3,592/mo — $246,608 total interest
Savings: $311,428 in interest

Why use FreeMortgageCalculator.com?

Built for speed, accuracy, and simplicity — no nonsense, no ads, no signups.

Instant Results

Calculations update in real time as you type. No need to click calculate — just start entering numbers.

Zero Ads

No popups, no banners, no distractions. Just clean, fast calculators that respect your time.

100% Private

All calculations run in your browser. Your numbers never leave your device or get stored anywhere.

Works Everywhere

Fully responsive on desktop, tablet, and mobile. Use CalcHub on any device, anytime.

Frequently Asked Questions

How is the monthly mortgage payment calculated?
The monthly payment is calculated using the standard amortization formula: M = P[r(1+r)^n]/[(1+r)^n-1], where P is the loan amount (home price minus down payment), r is the monthly interest rate (annual rate divided by 12), and n is the total number of monthly payments.
Does the mortgage calculator include taxes and insurance?
Yes — CalcHub includes optional fields for monthly property tax and homeowner's insurance. These are added to your principal and interest payment to show your true total monthly housing cost (PITI — Principal, Interest, Taxes, Insurance).
What does the amortization schedule show?
The amortization schedule shows how each monthly payment is split between principal (reducing your loan balance) and interest (the cost of borrowing). Early in the loan, most of your payment goes to interest. Over time, more goes to principal.
How do I calculate a percentage of a number?
To find X% of Y, multiply Y by X and divide by 100. For example, 15% of 200 = (200 × 15) ÷ 100 = 30. Use the "What is X% of Y?" calculator above for instant results.
How much should I tip at a restaurant?
The standard tip at a sit-down restaurant in the US is 15–20%. For exceptional service, 25% or more is appreciated. For average service, 15% is acceptable. For poor service, 10% is a minimum. Always tip on the pre-tax amount.
How do I split a bill with tip between multiple people?
Use the CalcHub tip calculator — enter the bill amount, select the tip percentage, then use the + button to increase the number of people splitting the bill. The calculator automatically shows how much each person owes including their share of the tip.
Should I tip on the pre-tax or post-tax amount?
The etiquette standard is to tip on the pre-tax amount — the subtotal before sales tax is added. However, many people tip on the total bill for simplicity. The difference is usually small — on a $100 bill with 10% tax, tipping on pre-tax ($100) vs post-tax ($110) at 20% is $20 vs $22.
Yes — completely free, forever. No account required, no ads, no premium tier. Just free calculators for everyone.
Are my calculations private?
Absolutely. All calculations happen entirely in your browser using JavaScript. Nothing you enter is ever sent to a server, stored, or tracked. Your financial data stays completely private.