Calculadora online
Calculadoras online gratuitas para matemática básica, porcentagens, descontos e gorjetas.
Basic Calculator
Perform everyday addition, subtraction, multiplication and division.
Percentage Calculator
Calculate percentages, percentage changes and simple amounts.
What is X% of Y?
Calculate a percentage of a number.
What percent is X of Y?
Find what percentage one number represents of another.
Percentage increase or decrease
Compare an original value with a new value.
Add or subtract a percentage
Quickly calculate a percentage increase or decrease.
Discount Calculator
Find the discount amount and final price instantly.
Tip Calculator
Calculate the tip, total bill and amount per person.
How to use our calculators
Basic calculations
Use the basic calculator for everyday arithmetic, including addition, subtraction, multiplication and division.
Percentages
Calculate a percentage of a number, compare two values, or find the percentage increase or decrease.
Discounts and tips
Enter your price or bill and percentage to quickly calculate the amount saved, tip, total and per-person cost.
Calculator FAQ
Are these calculators free?
Yes. ToolPilot calculators are free to use without installing software.
Are my calculations uploaded?
No. Calculator values are processed directly in your browser.
How do I calculate a discount?
Enter the original price and discount percentage. The calculator shows both the amount saved and the final price.