All tools › Living things
Planting calendar
Sowing and planting dates counted from your own last frost, not from a date.
It runs entirely in this browser tab: nothing you type is uploaded, and every published figure on the result says where it came from.
Settings
- Last frost
- Yours, not a national average. Empty gives weeks either side of it instead.
- First autumn frost
- Optional. With both, the growing season is the gap between them.
- Show the harvest
- Days from planting out, which varies by variety more than by place.
How to use it
- Paste your text into the box above, or open a file.
- Adjust the settings beside it until the result is what you wanted.
- Copy the result, or save it as a file. The result updates as you type.
Questions
- Where do the published figures come from?
- From the tables the trade uses: saponification values from the oil chemistry, yarn yardages from the craft council's weight standards, filament densities from the material data sheets. Every one is a figure for a *kind* of thing, and the result names what beats it — the bottle, the ball band, the spool.
- Is the lye calculator safe to make soap from?
- It is arithmetic on published values, and the result carries the safety notes and says to check any recipe against a second calculator before making it. Lye is caustic; the superfat is the margin for a weighing error and is not there to be set to nought.
- Why does the chocolate tool not just say whether the dog is fine?
- Because that is a vet's decision and not a table's. What it gives is the theobromine dose, the whole published ladder with the dog's own row marked, and how much of that chocolate would reach the first threshold — and it says to ring a vet on every result, including the low ones.
- Is anything I type kept?
- No. There is no account and no server: the page runs in this tab, works the answer out and forgets it when you close it. That holds for the baby log and the allowance tracker as much as for the yarn estimate.
Other tools for living things
Baby day log
Adds a day of feeds, sleeps and nappies up, and works out the gaps.
Nappy usage
Counts nappies a day for a baby's age and what the packs will cost.
Plant watering rota
How often each plant wants water, for the season, the light and the room.
Pet food portions
Works out the daily ration from weight, life stage and the packet's energy.
Dog chocolate risk
Works the theobromine dose out and shows the whole published ladder.
Gestation dates
The published range a litter is due over, for ten common species.
Aquarium volume
The water actually in a tank, the filter flow it wants and the dose.
Care label reader
Names what each symbol on a label means, and which family said nothing.
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