Options Premium Calculator
Put and call premium for grain marketing strategies.
About this calculator
This calculator prices out a put option strategy, the tool grain marketers use to set a price floor while keeping upside if the market rallies — unlike a futures hedge, which locks in one price both ways. Total premium cost is simply the per-bushel premium times contract size times number of contracts bought, and that premium is the maximum you can lose on the position, paid upfront regardless of what futures do afterward. Floor price is strike price minus premium — the effective minimum you've secured once the premium cost is netted out. The intrinsic value calculation (the amount by which the option is in-the-money) is computed as strike minus futures price, which is specifically the put-option formula: it reflects what the option would be worth if exercised right now, and only applies when futures trade below the strike.
Time value — premium minus intrinsic value — represents everything else priced into the option: time remaining until expiration and implied volatility. As futures price approaches expiration, time value decays toward zero even if futures don't move, which is why an option purchased for hedging needs to be re-evaluated as time passes rather than assumed to hold its premium value. A key assumption to flag: despite the calculator's name covering "puts and calls," the intrinsic-value math here is built for a put; if you're evaluating a call option instead, the in-the-money direction is reversed (call intrinsic value is futures minus strike), so don't apply this floor-price framing to a call position.
Inputs
Results
Total premium ($)
$2,500.00
How to Use This Calculator
- Enter the Futures Price and Strike Price for the put or call option.
- Enter Premium Per Bushel, Contract Size in bushels, and Number of Contracts.
- Review Total Premium Cost — this is the maximum risk when buying options.
- Check Floor Price Per Bushel (strike minus premium) as your effective price floor.
- Use Intrinsic Value and Time Value breakdown to evaluate whether an option is in-the-money.
How the result changes with Premium ($/bu)
| Premium ($/bu) | Total premium ($) |
|---|---|
| 0.13 | $1,250.00 |
| 0.19 | $1,880.00 |
| 0.38 | $3,750.00 |
| 0.63 | $6,250.00 |
What each input means
- Futures price ($/bu)
- Current futures contract price.
- Strike price ($/bu)
- Option strike price.
- Premium ($/bu)
- Option premium per bushel.
- Contract size (bu)
- Bushels per options contract.
- Number of contracts
- Number of option contracts to buy.
What each result means
- Total premium ($)
- Total cost of the options position.
- Floor price ($/bu)
- Effective minimum price (strike minus premium).
- Intrinsic value ($/bu)
- In-the-money value of the option.
- Time value ($/bu)
- Premium minus intrinsic value.
- Bushels protected
- Total bushels covered by the options.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersFutures price ($/bu) = 6, Strike price ($/bu) = 5.8, Premium ($/bu) = 0.25, Contract size (bu) = 5000 = 5 input(s) provided
- Calculate Total premiumTotal premium = premiumPerBu * contractSizeBu * numContracts2500 = $2,500
- Calculate Floor priceFloor price = round((strikePrice - premiumPerBu) * 10000) / 100005.55 = 5.55
- Calculate Intrinsic valueIntrinsic value0 = 0
Engine last updated . Checked against 2 independently-derived tests — how we verify calculators. Built by Paul Gunder, a software engineer, not a licensed financial, medical, or legal professional.
Frequently Asked Questions
How is intrinsic value calculated, and does the formula work for call options too?
This calculator computes intrinsic value as strike price minus futures price, which is specifically the put-option formula — it's only positive when futures trade below the strike. A call option's intrinsic value runs the opposite direction (futures minus strike), so if you're pricing a call rather than a put, this number and the floor-price framing built around it don't apply.
What's the difference between the floor price and the strike price I entered?
Floor price is strike price minus the premium you paid, not the strike price itself. Because buying the put costs money upfront, your effective protected minimum is lower than the strike by exactly the premium — the calculator nets that cost out so floor price reflects what you actually walk away with in the worst case.
Why does the time value output matter if I'm holding the option for hedging, not trading it?
Time value is premium minus intrinsic value, and it represents everything besides current in-the-moneyness — mainly time remaining until expiration. That portion decays toward zero as expiration approaches even if futures prices don't move at all, so an option's premium erodes over the holding period and needs to be reassessed rather than assumed to hold its original value.
Is the total premium cost the most I can lose on this position?
Yes — for a purchased option (put or call), the premium is paid upfront and is the maximum possible loss regardless of how far futures move against you. That's the core appeal of buying options over a futures hedge: your downside on the position itself is capped at total premium cost, calculated here as premium per bushel times contract size times number of contracts.
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