Calculators
Financial calculators free, no sign-up
Simulate loans, interest and installments with no sign-up. The same math JuntaTudo uses to track your money.
Most used
Loan calculator
Compare SAC and Price: installments, interest and total cost.
Compound interest
See how much an amount earns with interest on interest.
Investing with monthly contributions
Simulate how much you build by saving every month.
Emergency fund
How much to save and how long it takes to get there.
Installment interest rate
Find the rate hidden in an installment purchase.
Percentage
What is X% of Y, what percent, and the change.
All calculators
Financial calculators
Interest, loans, investments and emergency fund.
Loan calculator
Compare SAC and Price: installments, interest and total cost.
Compound interest
See how much an amount earns with interest on interest.
Simple interest
Calculate interest that applies only to the starting amount.
Investing with monthly contributions
Simulate how much you build by saving every month.
Price table
Fixed installments and how the debt evolves month by month.
SAC table
Installments that go down and the balance month by month.
Emergency fund
How much to save and how long it takes to get there.
Revolving interest
See how much a card debt grows when unpaid.
Percentage
What is X% of Y, what percent, and the change.
Ethanol or gasoline
Find out which fuel pays off at the pump prices.
Graham fair price
Fair value of a stock from earnings and book value.
Bazin price ceiling
The maximum price to pay for a dividend stock.
Gordon growth model
Fair price from growing dividends.
Installment interest rate
Find the rate hidden in an installment purchase.
Bank CD (CDB)
Net return of a Brazilian bank CD, after income tax.
Savings account
What the Brazilian savings account earns under the current rule.
First million
How long until you reach your goal.
Passive income
How much capital produces the monthly income you want.
NPV (net present value)
Is this project worth investing in?
Labor calculators
Vacation pay, salary and work benefits.
Health calculators
BMI and ideal weight.
Date calculators
Business days and the difference between dates.
Free, no sign-up
Open it, calculate, done. No email, no password.
Your numbers stay with you
The math runs in your browser: nothing is sent or stored.
The same math as JuntaTudo
The same calculations the app uses to track your money.
All your money in one place
Accounts, cards, investments and goals in a single app. These calculators are a gift from JuntaTudo.
- Accounts and cards
- Investments and goals
- Juntin, the AI that puts it all together