Tantiyahin ang Timbang ng Isda mula sa Haba (W = aL^b)
Tantiyahin ang timbang mula sa haba ng isda at mga coefficient a at b, pagkatapos ay panatilihin ang resulta, saklaw ng error, naka-save na set ng coefficient, at maibabahaging JSON sa iisang workflow.
Ginagawang malinaw ng page ang mga palagay sa TL / FL / SL at sinusuportahan ang mabilis na tantiya, pag-fit ng coefficient, at batch na pagproseso nang hindi umaalis sa browser.
Ano ang Saklaw ng Tool na Ito
How to use
- Enter the species name, length, unit, and length type, then choose a reference preset or enter coefficients a and b directly.
- Adjust the error percentage to update the estimated weight and range on the right in real time.
- Once the coefficients are settled, save them with a name and notes or export them as JSON.
- Use the coefficient fitting tab when you do not know the coefficients yet, and the batch tab when you need results for many measurements.
Examples
Estimate from a reference preset
Species: Japanese jack mackerel, length: 35 cm, length type: TL, a=0.01096, b=2.97, error: ±20%
Estimated weight: about 421 g, range: about 337 g to 505 g
Solve for a from one sample
Length: 35 cm, observed weight: 432 g, assumed b: 3.0
a = 0.01008, formula: W(g) = 0.01008 × L(cm)^3.0
Batch calculation
Run 25 cm, 30 cm, and 35 cm with the same coefficient set
List estimated weight, low range, and high range for each row and export the table as CSV
Reference presets
Built-in presets are reference values only. Check the source label and length-type assumption in the result panel, and replace them with measured operating values whenever possible.
Talasalitaan
TL / FL / SL
Total length, fork length, and standard length. The coefficient set is only valid when the same length definition is used.
Coefficients a and b
The values that define the relationship W = aL^b. They vary by species, region, season, and stock condition.
Error range
The working range around the estimate. Adjust it to reflect regional differences, maturity, and body condition.
Reference coefficient
A coefficient set taken from published or public reference data. Validate it before operational use.
Fitted coefficient
A coefficient set derived from your own measured fish, either by back-solving or by regression.
Mga Pormula
Estimated weight W(g) = a × L(cm)^bLower bound = W × (1 - error% / 100)Upper bound = W × (1 + error% / 100)Single-sample solve: a = W / L^bMulti-sample fit: log(W) = log(a) + b log(L)
FAQ
Hindi ko alam ang a at b. Ano ang dapat kong gawin?
Gamitin ang tab ng pag-fit ng coefficient. Maaari mong kunin ang a mula sa isang nasukat na sample, o i-fit ang a at b mula sa maraming length-weight pair.
Maaari ba akong magkalkula ng maraming isda nang sabay-sabay?
Oo. Tumatanggap ang batch tab ng table entry at CSV-style paste, at maaari mong i-download ang resulta bilang CSV.
Maaari ba akong lumipat sa pagitan ng cm at inches, o g at lb?
Oo. Maaaring palitan anumang oras ang input at output units. Laging gumagamit ng cm at g ang internal calculations.
Bakit malayo minsan ang tantiya sa aktuwal na timbang?
Nagkakaiba pa rin ang mga isda ng iisang species ayon sa rehiyon, panahon, maturity, taba, at paraan ng pagsukat. Gamitin ang tantiya bilang saklaw, hindi bilang garantisadong eksaktong halaga.
Saan naka-store ang mga naka-save na coefficient?
Kung walang login support, ang mga naka-save na set ay nasa localStorage ng browser na ito. Magpanatili ng JSON export kung kailangan mo ng portable na kopya.
May ipinapadalang data ba sa server?
Wala. Lahat ng kalkulasyon, pag-save, at pag-generate ng JSON ay nananatili sa browser.
Important notes
- This estimate is only a guide. Region, season, maturity, body condition, and measurement method can change the result substantially.
- Always use coefficients with the same length type and unit assumption. The internal base is cm and g.
- Reference presets are not operating values. Use measured data to build your own sets whenever possible.