Repot Soil Volume Increase Calculator
Reconcile actual repot fill/rootball displacement, caller extra settling allowance and media inventory; not simple old/new nominal pot volume percentage or blend-calibration equivalence.
Description
New-media demand excludes existing rootball displacement and includes an explicit extra allowance.
New-media demand excludes existing rootball displacement and includes an explicit extra allowance. Inventory margin can remain negative.1
Enter aligned nonempty nonnegative measured volumes with rootball≤fill, nonnegative allowance/inventory. Return per-pot additions, total and signed margin.
When to use Repot Soil Volume Increase Calculator
Use Repot Soil Volume Increase Calculator when you need to evaluate the supplied records under the calculation and evidence rules below. Allowance is an added fraction, not a shrinkage inversion. No nominal-pot percentage, blend recipe or settling measurement is inferred.
Prepare measured container, labor, environmental or inventory records and independently verified stage limits requested. Keep units, temperature conditions and dates consistent.
How to use Repot Soil Volume Increase Calculator and understand its results
- Prepare measured container, labor, environmental or inventory records and independently verified stage limits requested. Keep units, temperature conditions and dates consistent.
- Enter measuredNewPotFilledLiters, measuredDisplacingExistingRootballLiters, callerAdditionalSettlingAllowanceFraction, availableNewMediaLiters using the field table and calculation rules, then run the tool.
- Read netAdditionalMediaLitersByPot, totalAdditionalMediaLiters, signedNewMediaInventoryMarginLiters. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| measuredNewPotFilledLiters | Measured new pot filled liters | list of number | Required |
| measuredDisplacingExistingRootballLiters | Measured displacing existing rootball liters | list of number | Required |
| callerAdditionalSettlingAllowanceFraction | Caller additional settling allowance fraction | number | Required |
| availableNewMediaLiters | Available new media liters | number | Required |
Enter aligned nonempty nonnegative measured volumes with rootball≤fill, nonnegative allowance/inventory. Return per-pot additions, total and signed margin.
additional[i]=(filledVolume−rootballVolume)(1+allowance); margin=inventory−sum(additional) Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| netAdditionalMediaLitersByPot | Net additional media liters by pot | list of number |
| totalAdditionalMediaLiters | Total additional media liters | number |
| signedNewMediaInventoryMarginLiters | Signed new media inventory margin liters | number |
{
"input": {
"measuredNewPotFilledLiters": [
3,
5
],
"measuredDisplacingExistingRootballLiters": [
1,
2
],
"callerAdditionalSettlingAllowanceFraction": 0.1,
"availableNewMediaLiters": 5
},
"output": {
"netAdditionalMediaLitersByPot": [
2.2,
3.3000000000000003
],
"totalAdditionalMediaLiters": 5.5,
"signedNewMediaInventoryMarginLiters": -0.5
}
}Limitations and assumptions
Allowance is an added fraction, not a shrinkage inversion. No nominal-pot percentage, blend recipe or settling measurement is inferred.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Square Pot Volume Liter Calculator: A rectangular pot with straight tapered walls has an area that changes with height. Independently tapering width and length require integrating their product. For a complementary task, use Substrate Cost Per Pot Filled Calculator: Substrate batch cost uses actual ingredient quantities and saleable output. Rounding each ingredient and then per pot is an explicit accounting convention.
References
-
Repot Soil Volume Increase Calculator — tool.io
Similar or alternative tools
- Square Pot Volume Liter Calculator
A rectangular pot with straight tapered walls has an area that changes with height. Independently tapering width and length require integrating their product.
- Substrate Cost Per Pot Filled Calculator
Substrate batch cost uses actual ingredient quantities and saleable output. Rounding each ingredient and then per pot is an explicit accounting convention.