Handy tools
Quick calculators and guides for everyday farm jobs. They work on a phone, don't need an account and nothing you type is stored.
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Farm unit converter
Hectares ↔ acres, kg ↔ lb, c/kg ↔ $/cwt, spray and fertiliser rates, litres ↔ gallons, hp ↔ kW, °C ↔ °F.
9 converters
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Stock units (SU) calculator
Add up stock units for sheep, beef, dairy, deer and goats - then SU per hectare, sheep : cattle and the yearly feed demand.
Total SU, SU/ha, t DM a year
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Pasture cover and feed wedge
Turn your farm walk into average pasture cover, days of feed ahead, the area to graze a day and a feed wedge against your target line.
APC, days ahead, feed wedge
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Grazing rotation planner
Your round length and grazing area turned into hectares and paddocks to graze each day, the area per head, and a day-by-day plan to print.
ha a day, paddocks a day, plan
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Stock water calculator
Litres a day for your sheep, cattle, deer, goats and horses on a hot peak day, dairy shed water, how long the tank lasts and the pump flow you need.
L/day, tank days, L/min
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Milk price and income calculator
Your kg milksolids times the farmgate milk price: milk income for the season, per cow and per hectare, the forecast range, what every 10c is worth and your breakeven price.
Milk income, range, breakeven
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Lambing percentage calculator
Scanning %, lambing % (lambs tailed per 100 ewes to the ram), lamb survival and weaning % for a mob - and what a few more lambs at tailing are worth.
Scanning, lambing, weaning %
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Feed budget calculator
How much hay, silage or grain your stock need for the days ahead - in tonnes and bales.
Tonnes, bales, bales a day
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Feed cost comparer
Compare up to four feeds on a fair basis: cost per tonne of dry matter and per megajoule of energy.
Cheapest feed first
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Seeding rate calculator
Seeding rate in kg/ha and lb/acre from the plants you want, seed weight, germination and establishment.
kg/ha, seed and bags to order
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Spray tank mix calculator
Tank loads and how much of each product goes in every tank, from your area, water rate, tank size and label rates.
Mixing sheet per tank
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Fertiliser nutrient calculator
kg of N, P, K and S per hectare from your product rate and label analysis, the product and bags for the paddock, and the cost per kg of N.
kg N/P/K/S per ha, cost per kg N
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Livestock sale value calculator
Turn a c/kg price into dollars per head and in total - liveweight or carcase - and see what you keep after costs.
Per head, total, net c/kg
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Silo capacity calculator
How many tonnes a round silo holds - hopper and roof included - and how much is in it now from the grain depth.
m³ and tonnes, full and now
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Fencing calculator
Posts, wire and rolls for a paddock or a straight fence line, plus the paddock area.
Posts, wire, rolls, area
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Livestock due date calculator
Calving, lambing, kidding, farrowing and foaling dates from the mating or joining date.
Due date + calendar reminder
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Public holidays in New Zealand
The next public holiday, your province’s anniversary day, what happens when one falls on a weekend - and add them all to your calendar.
2026 + 2027, by province
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Te reo Māori on the farm
Everyday Māori farm words - whenua, pātiki, hipi, kōanga - with meanings, how to say them and flip cards to practise.
55 words + practice cards
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Farm words glossary
Plain explanations of farm and sale words - and what they are called in our other countries.
Words A–Z
Estimates, not advice. The tools use your own numbers and general figures. Check with your vet, agronomist, supplier or contractor before you buy or plan. Missing a tool you'd use? Tell us.
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