Fibonacci Calculator
Generate the Fibonacci sequence and read the nth term, up to 50 terms.
How it works
- 1Enter how many terms you want (1 to 50).
- 2Each term is the sum of the two before it, starting 0, 1.
- 3Read the full sequence and the value of the last term.
Use cases
- List the Fibonacci sequence for a class or project.
- Find the nth Fibonacci number.
- Explore the pattern behind the golden ratio.
Frequently asked questions
What is the Fibonacci sequence?
A sequence where each number is the sum of the two before it: 0, 1, 1, 2, 3, 5, 8, 13, and so on.
Where does it start?
This calculator starts at 0, 1 (the most common convention), so the first eight terms are 0, 1, 1, 2, 3, 5, 8, 13.
Why is it limited to 50 terms?
Beyond about 78 terms the values exceed what can be represented exactly, so the list is capped at 50 for accuracy.
Related tools
See all →Calculate the area and perimeter of a rectangle from its width and height, with a labeled diagram.
Calculate the area and circumference of a circle from its radius, with a labeled diagram.
Calculate the area (Heron’s formula) and perimeter of a triangle from its three sides.
Calculate the area and perimeter of a trapezoid from its two parallel sides, height, and legs.