How this calculator works
Hay price per pound is just bale price divided by bale weight; multiply that by 2,000 to get price per ton. That's the whole formula — the reason it needs its own calculator is that almost nobody quotes hay by the pound, and bale weights swing wide enough (a small square can run 40-70 lb, a round bale 700-1,200+ lb) that two prices quoted per bale aren't actually comparable.
The catch is exactly that comparability problem. A $6 square bale sounds cheaper than a $100 round bale until you account for weight — the square bale above works out to $240/ton, the round bale to $200/ton, so the "expensive-looking" round bale is the better buy. Sellers aren't hiding anything by quoting per bale; it's just the traditional unit, and it's on the buyer to convert before comparing. The round-vs-square calculator adds feeding waste and whole-season cost when bale format is also part of the decision.
Use this before you commit to a load, not after. Start with the target quantity from the winter hay calculator. Ask the seller for bale weight, or weigh a representative bale if you're picking up in person, rather than trusting a nominal figure. Actual weight varies with moisture, cutting, and baler settings; even a modest difference can flip which offer is cheaper once both are converted to price per ton. Leave Offer B blank for a single conversion, or enter both complete offers for a comparison. When a target quantity is present, the tool converts tons to pounds, divides that same pound target by each offer's bale weight, rounds each order up to whole bales, and compares the resulting invoices.
Delivery can reverse that invoice comparison. Enter a flat charge, a mileage rate with its distance, or both for each offer. The calculator adds those user-entered charges to each rounded invoice, then divides the landed total by the actual tons and bales purchased. Taxes, unloading, minimum-order fees, and return mileage are included only if you add them to the charge quoted by the seller. Before accepting the load, check its floor-space requirement in the hay storage calculator.
Method: standard unit-conversion arithmetic using only the visitor's own inputs: price per bale ÷ bale weight × 2,000 = price per ton; landed total = rounded whole-bale invoice + flat delivery + (rate per mile × miles). The converter uses no species or university-extension data values, so this calculation does not require an external citation. Estimates only — confirm actual bale weight, order terms, and delivery charges with the seller.
Frequently asked questions
How do I convert hay price per bale to price per ton?
Divide the bale price by the bale weight to get price per pound, then multiply by 2,000. A 50 lb bale at $6 is $0.12/lb, or $240/ton.
Why compare hay prices per ton instead of per bale?
Bale weights vary widely by type and even by field, so a lower price per bale can actually be more expensive hay. Price per ton (or per pound) is the only fair way to compare two different offers.
How many bales should I order for a target amount of hay?
Enter the same target in pounds or tons. The calculator divides it by each offer's bale weight and rounds up to whole bales, then shows invoice total, leftover hay, and which complete order costs less.
Plan the rest of the barn
BaleMath is free to use. Numbers are planning estimates, not a purchase guarantee — confirm actual weight and price with the seller.