How Much Per Month?
25+ Minimalist Financial Calculators
How Much Per Month? is a collection of 25+ free financial calculators that convert any salary, debt balance, interest rate, or expense into a clear monthly number. Every calculator runs instantly in your browser with zero ads, zero signups, and zero tracking.
Whether you need to estimate a mortgage payment, plan student loan repayment, calculate compound interest growth, or audit your subscriptions — pick a calculator below and get your answer in seconds.
Money & Debt
Mortgage
Home Loan Estimator
Auto Loan
Vehicle Finance
Student Loan
Repayment Plan
Credit Card
Payoff Timeline
Debt Zero
Payoff Calculator
Paycheck
Take-Home Pay
Compound Interest
Growth Power
Investment Return
Portfolio Growth
Savings Goal
Growth Timeline
Retirement
4% Rule
The Oracle
Freedom Date
Net Worth
Financial Position
Emergency Fund
Safety Net
Income & Lifestyle
Rent vs Buy
Honest Comparison
Lease vs Buy
Car Cost Compare
Freelance
Hourly Rate
Side Hustle
After-Tax Income
Inflation
Purchasing Power
Lifestyle Creep
Hedonic Treadmill
Subscription Audit
Kill Hidden Costs
Tip Calculator
Split the Bill
AI Cost
Model Comparison
Life Events
The Receipt
The hidden cost of small subscriptions.
Monthly Cost ...
Yearly Cost ...