Ferramentas estudantis
Calculadoras e ajudas para o sucesso acadêmico.
Free Ferramentas estudantis — browser-based and private
Every tool in Ferramentas estudantis runs in your web browser when possible, so files and text stay on your device. Pick a utility below, read the guide on each tool page, and use related links to move between similar features. No account is required to start.
Tools Directory
01. Calculadora GPA
Grátis Calculadora GPA Online.
02. Calculadora de porcentagem
Grátis Calculadora de porcentagem Online.
03. Calculadora de notas
Grátis Calculadora de notas Online.
04. Juros compostos
Grátis Juros compostos Online.
05. Timer de estudo
Grátis Timer de estudo Online.
06. Sorteador de nomes
Grátis Sorteador de nomes Online.
07. Calculadora científica
Grátis Calculadora científica Online.
Student tools include GPA and grade calculators, percentage math, compound interest examples, Pomodoro study timers, and scientific calculators. They are built for quick checks while studying—not as official registrar replacements.
Always confirm grading policies with your school before relying on any calculated result for scholarships, probation, or graduation decisions.
What you can do here
- Weighted grade and GPA estimators
- Percentage change and ratio math
- Focus timers with break intervals
- Scientific functions for STEM homework
Frequently Asked Questions
Which GPA scale do you use?
Our GPA calculator supports common 4.0 and 5.0 scales plus percentage inputs. Select the scale that matches your institution’s handbook.