math calculator

Arithmetic Sequence Nth Term Calculator

This arithmetic sequence nth term calculator helps when first term, common difference, n are already known and you want the nth term quickly.

Important Use Notice

Informational calculator only. Verify important outputs independently before legal, tax, medical, engineering, safety-critical, contractual, employment, or compliance use.

Estimate

Enter job values, review the estimate, then use the decision hints before ordering or quoting.

Estimate Results

Enter values to see the result.

Example

5, 3, 10 gives Nth Term 32.

Formula

a_n = a_1 + (n - 1)d

Start from the first term and add the common difference enough times to reach term n.

This page assumes a standard arithmetic progression.

Check

Mixing units or scales across first term, common difference, n before calculating nth term.
Confirm that all inputs use the same unit system expected by the formula.

Next Step

FAQ

When should I keep extra decimals for arithmetic sequence nth term calculator?

Keep more decimal places when the result will be reused in another formula, drawing, or comparison rather than read once and rounded.

Is arithmetic sequence nth term calculator a stable evergreen formula?

Yes. The formula is stable and this tool only covers straightforward calculation.