Step-by-step instructions
- Enter or select First term.
- Enter or select Term number.
- Enter or select Common difference.
- Tap Calculate.
- Review the result shown directly below the calculator.
Arithmetic Sequence Nth Term Calculator
Calculate an = a1 + (n−1)d.
How to use the Arithmetic Sequence Nth Term Calculator
Calculate an = a1 + (n−1)d.
What the inputs mean
- First term
- Enter the value requested by this field label.
- Term number
- Enter the value requested by this field label.
- Common difference
- Enter the value requested by this field label.
Formula or calculation method
The calculator applies the standard mathematical relationship for the labeled inputs and returns the computed result automatically.
Example
Try entering realistic values for First term and Term number, then tap Calculate to see how the result changes.
How to understand the result
Use the result as an estimate based on the values you entered. For planning decisions, double-check that the input units and assumptions match your real situation.
Tip: Keep all values in compatible units and use values from the same time period when the calculator compares two amounts.