genetics.guru
Grow tools
Calculators for the whole run, from climate to cure. Each one shows its formula and its assumptions, and every target range links to its source with an evidence grade. No products, no brands.
14 tools live · 96 planned. Home cultivation is legal only in some places; check your local law. 21+.
Climate
- VPD calculator + chartBasicLeaf VPD from temperature and RH, with a stage-banded heat map.Open
- Dew point & condensation riskBasicDew point, cold-surface margin and the lights-off humidity spike.Open
- Ventilation / exhaust CFMBasicFan size for a room, derated for filter and ducting.Open
- Heat load / AC sizerBasicBTU/h and cooling tons from equipment watts.Open
- CO₂ enrichmentAdvancedFill volume, leakage, daily use and tank life for a target ppm.Open
- Dehumidifier sizerBasicDaily moisture to remove from irrigation volume.Coming soon
- Day/night (DIF) plannerAdvancedLights-on vs lights-off temperature and stretch.Coming soon
- Airflow / fan placementBasicOscillating fan count and placement by space size.Coming soon
- Sensor calibration helperAdvancedOffsets from a saturated-salt RH test.Coming soon
- Controller rule builderAdvancedBrand-neutral if/then rules for environment controllers.Coming soon
Lighting
- DLI ↔ PPFD ↔ photoperiodBasicSolve for any one from the other two, against cited stage targets.Open
- Efficacy & running costBasickWh, cost per run and photon output from µmol/J.Open
- Fixture count plannerBasicFixtures needed for a canopy at a target PPFD.Coming soon
- Lux → PPFD estimatorBasicRough PPFD from a lux reading, with error bars.Coming soon
- PPFD map gridAdvancedMeter readings to a uniformity heat map.Coming soon
- Light distance / dimmingBasicStarting height and dim level per stage.Coming soon
- Photoperiod schedulerBasicTimer schedule and flip date.Coming soon
- Light-leak checklistBasicDark-period integrity checks.Coming soon
- Spectrum explainerAdvancedUV, far-red and end-of-day light, evidence-graded.Coming soon
Water & nutrients
- EC ↔ ppm converterBasicOne reading on every meter scale, and why they disagree.Open
- Fertilizer label → ppmBasicElemental N, P, K, Ca, Mg, S from the label and your dose.Open
- pH guide & availabilityBasicTarget pH by medium and nutrient availability.Coming soon
- Nutrient schedule scalerBasicFeeding chart scaled to your reservoir.Coming soon
- Custom salt formulatorAdvancedGrams of each salt for target ppm, A/B split.Coming soon
- Source-water analyzerBasicTap water baseline and RO blend.Coming soon
- RO / tap blendBasicBlend ratio for a target base EC.Coming soon
- Runoff trackerBasicInput vs runoff EC/pH over time.Coming soon
- Reservoir & dissolved oxygenAdvancedDO saturation by solution temperature.Coming soon
- Reservoir change plannerBasicChange schedule and top-off strength.Coming soon
- Organic amendment calculatorBasicTop-dress rates from guaranteed analysis.Coming soon
- Living-soil recipeBasicCommunity base-mix recipe by volume.Coming soon
- Compost tea guideAdvancedRecipe and brew time, evidence-graded.Coming soon
- Cost per feedBasicNutrient cost per litre, plant and run.Coming soon
Media & irrigation
- Container size recommenderBasicPot size from veg length and plant size.Coming soon
- Soil / bed volumeBasicLitres, gallons and bags for pots or beds.Coming soon
- Watering volume estimatorBasicVolume per event and runoff target.Coming soon
- Pot weight / drybackBasicWet/dry weights to time irrigation.Coming soon
- Crop steering plannerAdvancedShot sizes and dryback targets.Coming soon
- Drip system designerAdvancedEmitters, zones and pump sizing.Coming soon
- Flood & drain / DWC sizerAdvancedReservoir, pump and air sizing.Coming soon
- Coco buffering guideBasicCal-Mag buffering by brick count.Coming soon
Planning
- Grow calendar generatorBasicDated timeline from strain flowering weeks.Coming soon
- Autoflower timelineBasicSeed-to-harvest plan from breeder weeks.Coming soon
- Perpetual harvest schedulerAdvancedStaggered clone and flip schedule.Coming soon
- Canopy / plant-count plannerBasicPlant count and layout by method.Coming soon
- Height plannerBasicWhen to flip for your ceiling.Coming soon
- Training plannerBasicTopping, LST and ScrOG step by step.Coming soon
- Defoliation scheduleBasicCommon-practice defoliation days.Coming soon
- Mother & clone managerAdvancedCut schedule and rooting tracker.Coming soon
- Germination trackerBasicGermination rate and days to taproot.Coming soon
Diagnostics
- Leaf symptom diagnosisBasicRanked likely causes from where and how leaves change.Coming soon
- pH lockout checkerBasicNutrients likely unavailable at your root-zone pH.Coming soon
- Pest identifierBasicCommon pests, lifecycles and IPM options.Coming soon
- Disease identifierBasicMildew, bud rot, root rot, HLVd.Coming soon
- Sexing & hermaphrodite guideBasicPre-flower identification and risk factors.Coming soon
- Stress triageBasicProbable cause from recent events.Coming soon
IPM
- IPM schedule builderBasicPreventive rotation that stops before flower.Coming soon
- Mode-of-action rotationAdvancedIRAC/FRAC resistance warnings.Coming soon
- Beneficial insect selectorAdvancedPredators by pest and climate.Coming soon
- Pre-harvest interval trackerBasicLast allowable spray dates.Coming soon
- Sticky-trap logBasicWeekly counts and trend.Coming soon
Harvest & cure
- Wet → dry estimatorBasicExpected dry weight from fresh weight, with the cited range.Open
- Yield metricsBasicg/W, g/m², g/day and cost per gram.Open
- Trichome maturity guideBasicClear / cloudy / amber readout.Coming soon
- Harvest window estimatorBasicWindow from flip date and breeder weeks.Coming soon
- Flush guideBasicWhat the research says about flushing.Coming soon
- Dry room plannerBasicDrying targets and expected days.Coming soon
- Cure trackerBasicJar RH, burping and water activity.Coming soon
Processing
- Edibles & decarb dosingBasicDecarb conversion and mg per serving, start-low guidance.Open
- Rosin press guideBasicPlate pressure, temperature and yield.Coming soon
- Ice-water hash micron guideAdvancedGrades per micron and yield tracking.Coming soon
- Infusion calculatorBasicButter/oil ratios and potency per gram.Coming soon
Breeding
- Backcross / selfing / sib calculatorBasicRecurrent-parent share and inbreeding by generation.Open
- Pheno-hunt plannerBasicSeeds to pop to find a 1-in-N keeper.Open
- Cross plannerAdvancedCombined lineage of two strains from the archive.Coming soon
- Coefficient of inbreedingAdvancedWright's F from a pedigree.Coming soon
- Punnett squareBasicMendelian and chemotype ratios.Coming soon
- Pheno-hunt scoring sheetBasicPer-plant scores and keeper ranking.Coming soon
- Pollen storage guideAdvancedDrying, storage and viability.Coming soon
- Feminized-seed guideAdvancedReversal sprays with safety notes.Coming soon
- Seed storage & viabilityBasicExpected germination drop with age.Coming soon
- Genetic testing explainerAdvancedWhat sex, HLVd and genome reports mean.Coming soon
Equipment & power
- Electrical load checkBasicAmps, breaker use and the 80% continuous-load rule.Open
- Grow-space build plannerBasicSpec list by space size and medium.Coming soon
- Running-cost & ROIBasicPayback period for equipment.Coming soon
- Meter calibration scheduleBasicReminders and buffer steps.Coming soon
- Timer / controller plannerBasicSchedules for lights, fans and pumps.Coming soon
Logs & data
- Grow journal / run trackerBasicLocal-first timeline of plants, feeds and climate.Coming soon
- Sensor data importAdvancedCSV from climate sensors aligned to the grow.Coming soon
- Plant tags / QR labelsBasicPrintable labels linked to the journal.Coming soon
- Run comparisonAdvancedSide-by-side runs.Coming soon
- Contribute a grow reportBasicShare a run on the strain page.Coming soon
Reference
- Stage targets tableBasicTemperature, RH, VPD, light, EC, pH and CO₂ by stage, every cell cited.Open
- Unit converterBasic°C/°F, volume, length, area, mass, pressure, EC/ppm, airflow.Open
- GlossaryBasicPhenotype, cut, IBL, BX, S1 and more.Coming soon
- Myths vs evidenceBasicFlushing, molasses, UV, 48 h dark, each graded.Coming soon