Rex says
Everyday utility math — the kind you'd otherwise pull up four browser tabs for. I keep it to one clean answer.
Try a scenario
Click to load — tweak from there.Inputs
Result
Seeding rate (seeds/acre)
38,902
Pounds per acre
24.31
Total seed needed (lb)
3890
Bags to order
78
Total seeds
6,224,256
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One click, a permanent link with your numbers baked in.
How to use this
- 1Enter target plant population (plants/acre).
- 2Enter germination (%).
- 3Enter expected field survival (%).
- 4Enter seeds per pound.
- 5Enter acres.
- 6Enter pounds per bag.
- 7Read your seeding rate (seeds/acre) on the right — it updates as you type.
- 8Hit Share to keep the scenario or send it to someone.
About this calculator
Convert a target plant population into a seeding rate that accounts for germination and expected stand loss, then into pounds and bags for the whole field.
Worked example
Using the values the calculator loads with:
Inputs
- Target plant population: 34000 plants/acre
- Germination: 95 %
- Expected field survival: 92 %
- Seeds per pound: 1600
- Acres: 160
- Pounds per bag: 50
Results
- Seeding rate (seeds/acre): 38,902
- Pounds per acre: 24.31
- Total seed needed (lb): 3,890
- Bags to order: 78
- Total seeds: 6,224,256
What each field means
Inputs
- Target plant population (plants/acre)
- The target plant population used in the calculation, measured in plants/acre. Starts at 34000 plants/acre so you have a working example on load.
- Germination (%)
- The germination used in the calculation, measured in %. Starts at 95 % so you have a working example on load. Accepted range: 30–100 %.
- Expected field survival (%)
- The expected field survival used in the calculation, measured in %. Starts at 92 % so you have a working example on load. Accepted range: 30–100 %.
- Seeds per pound
- The seeds per pound used in the calculation. Starts at 1600 so you have a working example on load.
- Acres
- The acres used in the calculation. Starts at 160 so you have a working example on load.
- Pounds per bag
- The pounds per bag used in the calculation. Starts at 50 so you have a working example on load.
Results
- Seeding rate (seeds/acre)
- Returned as a whole number and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Pounds per acre
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Total seed needed (lb)
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Bags to order
- Returned as a whole number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Total seeds
- Returned as a whole number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
Where do I find seeds per pound?
On the seed tag, often listed as seed count or thousand-kernel weight. It varies by lot, not just by variety.
What survival rate is realistic?
90–95% in good seedbed conditions, lower with early planting into cold soil or heavy residue.
Accuracy and limitations
- Estimates assume standard, average conditions — local rules, pricing, and materials vary.
- Results are rounded for readability; add a buffer before ordering, booking, or committing.
- Double-check anything with a real cost attached against a local quote.
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Seeding Rate Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/seeding-rate
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/seeding-rate" target="_blank" rel="noopener">Seeding Rate Calculator — RevenueLab</a> (2026).</p>
Source: [Seeding Rate Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/seeding-rate) (2026).