Example: Type: Arithmetic · First term: 2 · Common difference / ratio: 3 · Term number n: 10 → nth term: 29.
Sum of first 10 terms: 155
Frequently asked questions
How do I calculate sequence? Enter your numbers above and the result updates instantly. For example: Type: Arithmetic · First term: 2 · Common difference / ratio: 3 · Term number n: 10 → nth term: 29.
Is this Sequence Calculator free? Yes — completely free with no sign-up or paywall. It runs entirely in your browser and keeps working offline; the numbers you enter never leave your device.
How accurate is it? It uses the standard published formula for sequence. Results are estimates for planning — not financial, tax, medical, engineering, or legal advice.