Cost per round calculator
Enter a box price and round count to get the cost per round, then see how it compares to the observed 30-day market range for that caliber — tracked daily across online retailers.
Enter a box price and round count to see where it falls.
Market context only — not a recommendation. Based on observed 30-day prices from tracked online retailers, which may not reflect the entire market.
How this works
Cost per round is box price divided by round count — the standard way to compare ammo prices across different pack sizes. This calculator plots your cost per round against the observed low, median, and high for that caliber over the trailing 30 days, computed from prices IronScout tracks across online retailers. The result is a factual position within observed data, not a recommendation, verdict, or prediction — you decide what to do with it.
Want the full picture for a caliber? See the ammo price index for every tracked caliber's distribution and trend, or jump straight to a caliber page:
FAQ
- What is cost per round?
- Cost per round (CPR) is the total box price divided by the number of rounds in the box. It's the standard unit for comparing ammo prices across different pack sizes and retailers.
- How is the market range calculated?
- The observed range (low, median, and high) is computed from prices IronScout has tracked over the trailing 30 days, from the online retailers it monitors. It reflects tracked coverage, not the entire market.
- Does this calculator recommend whether to buy?
- No. It shows where a price falls within the observed range only — a factual, positional comparison, not a recommendation, verdict, or prediction.