Blue Lotus Finance
Free Financial Calculators
Fast, private answers to everyday money questions
No signup, no ads before the fold, no upsell at the end. Just type in your numbers and get an answer.
🔒 Every calculator runs in your browser — nothing you type is sent to a server.
Budgeting
50/30/20 Budget Calculator
Split your take-home pay into needs, wants, and savings, then track actual spending against it.
Income
Paycheck Calculator
Estimate your take-home pay after federal and state taxes.
Debt
Debt Payoff Calculator
Compare the snowball and avalanche payoff methods side by side.
Savings
Savings Goal Calculator
Figure out how much to save monthly to hit a target by a date.
Housing
Mortgage & Loan Calculator
See your monthly payment and total interest for a home or auto loan.
Savings
Emergency Fund Calculator
Find your target safety net based on your monthly expenses.
Loans
Auto Loan Calculator
Monthly car payment, total interest, and total cost — with trade-in and sales tax.