Hay Yield Calculator | FarmerGrows

🌾 Hay Yield Calculator

Estimate expected hay yield per acre and total field production for any hay type and growing conditions

Unit System:
⚡ Quick Presets:
🌾 Hay Yield Results
Expected Yield (As-Fed)
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tons/acre as-fed
Total Field Yield
--
tons as-fed
Bales per Acre
--
bales/acre
Dry Matter Yield
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tons DM/acre
📊 Calculation Breakdown
Base DM yield (tons/acre)--
Condition adjustment factor--
Adjusted DM yield (tons/acre)--
Moisture at baling--
As-fed yield (tons/acre)--
Total bales (field)--
💡 Moisture Tip: Baling hay at the correct moisture is critical. Too dry and you lose leaves; too tough increases spoilage risk. Target 15-18% for baled alfalfa storage.
⚠ Stand Assessment: Count plants per square foot before estimating yield. A declining stand (year 5+) with fewer than 4 plants/sq ft typically yields 20-30% less than a good stand.
📊 Yield by Species & Cutting (tons DM/acre)
Hay Species
1st Cut
2nd Cut
3rd Cut
Alfalfa (pure)
1.5-2.5
1.0-1.8
0.8-1.5
Alfalfa-grass mix
1.2-2.0
0.9-1.5
0.7-1.2
Timothy
1.0-1.8
0.8-1.2
0.5-0.8
Orchardgrass
1.2-2.0
0.9-1.4
0.7-1.1
Bermudagrass
0.8-1.5
0.8-1.5
0.8-1.5
Native grass
0.5-1.0
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✂ Cutting Management Guide
Cutting #Typical TimingQualityRecovery Days
1st cuttingEarly boot to 10% bloomHighest protein & TDN30-45 days
2nd cutting35-45 days after 1stVery high quality28-40 days
3rd cutting35-45 days after 2ndHigh quality, lower yield30-40 days
4th cuttingLate summer, 35+ daysModerate, allow regrowth35-45 days
5th cuttingEarly fall, warm climatesLower yield, good qualityWinterization needed
📈 Yield Adjustment Factors
FactorImpact on YieldExampleManagement Response
Irrigation+30% yield2.0 tons becomes 2.6 tonsMaintain consistent moisture
Excellent conditions+20% yield2.0 tons becomes 2.4 tonsOptimize all inputs
Low fertility / no fertilizer-30% yield2.0 tons becomes 1.4 tonsSoil test & fertilize
Declining stand (5+ yrs)-25% yield2.0 tons becomes 1.5 tonsConsider renovation
Drought stress-40% yield2.0 tons becomes 1.2 tonsIrrigate or wait for rain
New stand (yr 1-2)-15% yield2.0 tons becomes 1.7 tonsProtect during establishment

The amount of hay you receive varies a lot based on the region, the type of soil and the kind of grass being grown. In the Midwest region, mixed grass or legume hay gives from one to five tons per acre for a whole season. Average yields for all hay kinds grew by 10% to 2.48 tons per acre in 2024.

Even so, the American dry hay yield dropped from 2.52 tons per acre in 2016 to 2.44 tons per acre in 2017. For temperate growing hay ranges between 2 and 6 tons per acre.

How Much Hay Does One Acre Produce

To produce one ton of hay requires 4 to 5 inches of water pumped through the roots. In a system with three cuts, the first cycle until July 1st delivers around 35 to 45% of the whole amount. The second cycle adds 30 to 35%.

For instance, if you expect 4 tons per acre for three cuts, the first cut estimates to 1.6 tons, so around 40% of the whole.

Also the number of bales ranges a lot. Per acre you can receive from 60 to 120 little square bales depending on quality, moisture and soil fertility. For the first cut 90 to 100 square bales are considered a good result.

On bad soil with old meadow or many weedy plants, expect only 60 to 80. In a good year in Midwest, an acre gives around 100 square bales of each 45 pounds. Orchard grass weighs normally 50 to 60 pounds per bale, timothy around 45, and mixed grass 42 to 48 depending on the amount of bluegrass.

Costs matter just as much as the amount. Per acre they range from under 200 to 500 dollars for production of 1.5 to 5 tons. Inputs cost around 350 dollars per acre, but more if you use fertilizers.

The break even works out to around 80 dollars per ton. With three cuts on 600 hay acres it is possible 1200 dollars per acre. Pure alfalfa can reach the hiest price.

Production of alfalfa decreases because of low irrigation after the first cut, and it suffers from abiotic and biotic stress that causes big yield declines. Well made and stored round bales help to reduce losses during storage and preserve the quality. Healthy soil provides more hay, fewer diseases and fewer weeds.

In New England, hay field rent is around 100 dollars per acre per year, with amounts that range a lot. Coastal bermuda hay in North Alabama reaches around 1.8 tons per acre for the first cut, with possibility for 5.4 tons across three cutsper acre.

Hay Yield Calculator | FarmerGrows

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