ACNL Turnip Calculator – Stalk Market Price Predictions


ACNL Turnip Calculator

An expert tool for predicting the Stalk Market in Animal Crossing: New Leaf.

Enter Your Turnip Prices


Bells paid per turnip.


Optional, but improves accuracy.

Daily Sell Prices

Enter the prices Reese offers each morning (AM) and afternoon (PM). Leave blank if unknown.



Chart visualizing your input prices against predicted minimum and maximum prices for the week.

What is an ACNL Turnip Calculator?

An acnl turnip calculator is a specialized tool for players of Animal Crossing: New Leaf to predict the selling price of turnips throughout the week. In the game, this is known as playing the “Stalk Market.” You buy turnips on Sunday from a boar named Joan and then sell them to Reese at the Re-Tail shop from Monday to Saturday. Prices change twice daily, and the goal is to sell for a higher price than you paid. This calculator uses known in-game patterns to forecast potential price spikes, helping you decide the best time to sell and maximize your profits. It’s an essential tool for any serious bell-millionaire in the making.

ACNL Turnip Patterns and Formula Explanation

The ACNL Stalk Market isn’t truly random; it follows one of four predictable patterns each week. The core of an acnl turnip calculator is its ability to analyze the prices you input and match them against these patterns. There isn’t a single mathematical formula, but rather a set of logical rules for each pattern.

  • Large Spike: Prices will typically decrease for a few days, then suddenly jump to three consecutive high values, with one being the peak (often 200-650 bells), before crashing again.
  • Small Spike: Similar to the large spike but more modest. After a decrease, there are four price increases creating a smaller peak (often 150-220 bells) before prices fall.
  • Random/Fluctuating: Prices go up and down with no clear trend. It’s a volatile pattern where you might get a decent price, but there are no massive spikes.
  • Decreasing: A disastrous week where prices only go down from Monday onward. In this scenario, your best bet is to sell your turnips in another player’s town.

Our bell farming guide discusses how leveraging these patterns is a cornerstone of wealth generation.

Variables Table

Variable Meaning Unit Typical Range
Buy Price The cost per turnip on Sunday. Bells 90 – 110
Sell Price The price Reese offers per turnip. Bells 15 – 660
Pattern The weekly price trend. Category Large Spike, Small Spike, Decreasing, Random
Peak Price The highest selling price during a spike week. Bells 150 – 660

Practical Examples

Example 1: The “Large Spike”

Imagine you bought turnips for 100 bells each. Your prices for the week are:

  • Inputs: Buy Price: 100, Mon AM: 85, Mon PM: 81, Tue AM: 77, Tue PM: 140, Wed AM: 210, Wed PM: 580
  • Analysis: The acnl turnip calculator detects a steady decrease followed by a sharp jump on Tuesday PM. This is the classic start of a spike.
  • Result: The calculator identifies a “Large Spike” pattern, with the peak occurring on Wednesday PM. The advice would be to sell immediately for 580 bells per turnip for a massive profit.

Example 2: The “Decreasing” Trap

You buy turnips for 103 bells. Your prices are:

  • Inputs: Buy Price: 103, Mon AM: 95, Mon PM: 91, Tue AM: 86, Tue PM: 82, Wed AM: 78
  • Analysis: Every price entered is lower than the last.
  • Result: The calculator quickly identifies a “Decreasing” pattern. It would advise that prices will not recover and you should sell on a friend’s island or accept a loss before Saturday. Checking a New Horizons calculator shows similar pattern logic, highlighting its importance across games.

How to Use This ACNL Turnip Calculator

  1. Enter Your Buy Price: Input the price you paid for turnips on Sunday.
  2. (Optional) Add Previous Pattern: If you know last week’s trend, selecting it can slightly improve the prediction odds.
  3. Log Daily Prices: Twice a day (before and after 12 PM), check the price at Re-Tail and enter it into the corresponding field (e.g., Mon AM, Mon PM). The more data, the better.
  4. Click “Predict Prices”: The calculator will analyze your inputs and provide its best guess for the weekly pattern.
  5. Interpret the Results: The output will show the most likely pattern, a guaranteed minimum price you’ll see that week, and a potential peak range if a spike is likely. Use the chart and table to visualize your week’s potential.

Key Factors That Affect ACNL Turnip Calculator Predictions

  • Data Accuracy: The calculator is only as good as the data you provide. Incorrect prices will lead to wrong predictions.
  • Number of Inputs: A prediction on Monday is very broad. By Wednesday, with 6 price points entered, the pattern becomes much clearer.
  • The Monday Price: The price on Monday morning relative to your buy price is a strong early indicator. A price below your buy price can point towards a spike or decreasing week, while a high price often points to a random week.
  • Previous Week’s Pattern: The game’s code makes it less likely to have the same pattern two weeks in a row, especially large spikes. Our tool considers this. If you are sharing town info, visit our town showcase page.
  • Price Decreases: A series of 2 or more consecutive price drops is a prerequisite for both spike patterns.
  • First Increase: The timing and value of the very first price increase after a series of decreases is a critical data point for distinguishing between a small and large spike.

Frequently Asked Questions (FAQ)

What if I miss a price check?

It’s okay! Just leave the input field blank. The acnl turnip calculator can still work with missing data, although its accuracy might be slightly reduced, especially early in the week.

Is a high price guaranteed if the calculator predicts a spike?

No. The calculator provides a probable range. For a “Large Spike,” the peak could be anywhere from 200 to over 600 bells. It tells you a spike is likely, but the exact value still has a degree of randomness.

What’s the main difference between a Large Spike and a Small Spike?

A Large Spike has 3 consecutive price increases before falling, with one of those being a very high peak. A Small Spike has 4 price increases and the peak value is much more modest. For more details on in-game items, see our rare bug guide.

What should I do if I have a Decreasing pattern?

Sell your turnips as soon as possible, ideally by visiting another player’s town where they have a high price. If you can’t, sell on your own island by Saturday afternoon to recoup some of your investment, as they rot on Sunday.

Why does the calculator give multiple possible patterns?

Early in the week (Monday/Tuesday), the prices can fit several patterns. For example, a decreasing price on Monday could lead to a Large Spike, a Small Spike, or a full-week Decreasing pattern. The calculator shows you all possibilities until more data rules some out.

Can I use this for Animal Crossing: New Horizons?

While the underlying patterns are very similar, New Horizons has slightly different probabilities and price ranges. It’s better to use a tool specifically designed for that game, like our ACNH Turnip Calculator.

Does time traveling affect the calculator?

Time traveling backward at all, or forward past the next Sunday, will instantly rot your turnips. If you time travel forward day-by-day within the same week, the prices will remain, but this is generally considered cheating. The calculator works fine as long as you input the prices for each time period.

How is the “Guaranteed Minimum” calculated?

This is the lowest possible price you could see based on the most pessimistic (but still possible) price pattern remaining. It’s a safety net, assuring you that you’ll at least have an opportunity to sell at that price or higher during the week.

Related Tools and Internal Resources

Expand your Animal Crossing journey with these other tools and guides:

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