All tools
Genuinely useful. Suspiciously specific. Totally counts as work.
Farm Cost and Break-Even Calculator
Add up the cost per hectare or acre, then see the profit and the yield and price you need to break even.
Machinery Cost per Hour Calculator
What a tractor or machine costs per hour and per hectare or acre, with the fixed costs spread over the hours.
Delivery Vehicle Cost Calculator
What your delivery bike, scooter, car or van really costs per km or mile and per hour of work.
Is This Delivery Worth It?
What one order really pays per hour and per km after the cost of running your vehicle.
Tip Out Calculator
What a server keeps after tipping out bar, bussers and runners, as a share of tips or of food, alcohol or total sales.
Tip Pool Calculator
Split a pool of tips fairly by hours worked, by points for each role, or by both, with each share to the cent.
Server Earnings Calculator
What a restaurant server earns from wage and tips, per hour, shift, week, month and year.
Tip Percentage Tracker
Type the bill and tip for each table and see your average tip percentage, best and lowest table.
Best Shift Calculator
Compare restaurant shifts by pay per hour and per shift, and find the one to ask for.
Recipe Cost Calculator
What a recipe costs line by line and per portion, with trim counted, and the food cost against your price.
Menu Price Calculator
What to charge for a dish from its cost and the food cost percentage you want.
Bike vs Scooter vs Car for Delivery
Compare two delivery vehicles side by side: which costs less per km or mile and per hour.
Delivery Mileage Deduction Calculator
A flat mileage rate against the work share of your real vehicle costs. Not tax advice.
Renovation Budget Calculator
Plan a home project step by step, with the cost of each stage and a running total: garage conversion, bathroom, kitchen, patio, raised beds and more.
DIY vs Hire Calculator
Is it cheaper to do it yourself? Counts materials, tools, mistakes and the value of your time against a quote.
Small Farm and Garden Start-Up Cost Calculator
What it costs to start a small farm, market garden or homestead, and how long it takes to earn the money back.
Seed Rate Calculator
Seeds to sow from row and plant spacing and germination, and the weight of seed to buy.
Fertiliser Product Calculator
Turn a nutrient rate into the amount of fertiliser product to buy, from the percentage on the label, and see the cost.
Irrigation Water Calculator
The volume of water for an area and a depth, allowing for efficiency, and how long the pump takes.
Garden Bed Plant and Seed Calculator
How many rows and plants fit in your beds, and how many seeds or packets to buy.
Animal Feed Calculator
How much feed your animals eat a month and a year, how many bags, and what it costs.
How Many Hens Do I Need? Egg Calculator
The number of hens for the eggs your household eats, or the eggs your hens will give you.
Rainwater Harvesting Calculator
How much water your roof can collect, how long it lasts, and the barrel or tank size for a dry spell.
Delivery Battery Range Calculator
How far one e-bike, scooter or EV battery goes, and how many charges or swaps a shift needs.
Room Paint Calculator
How much paint a room needs from its size, doors, windows and coats, using the coverage on the tin.
Tile Calculator
How many tiles and boxes to buy for a floor or wall, with an allowance for cuts and breakages.
Flooring Calculator
How much laminate, vinyl or wood flooring to buy, with waste included, in whole packs.
Concrete Slab Calculator
How much concrete for a slab, path or base from its length, width and thickness, in cubic metres or yards.
Mulch and Topsoil Calculator
How much mulch, topsoil or compost a garden bed needs from its area and depth, and how many bags.
Pond Planner: Liner and Cost Calculator
Plan a garden pond step by step: liner size, the cost of each stage, the pump to look for, a fish check and running costs.
Epoxy Resin Calculator
How much epoxy resin a river table, countertop or mould needs, with waste, layers and the mix ratio.
French Drain Gravel Calculator
How much gravel a French drain needs from the trench size, minus the pipe and the topsoil on top.
Firewood Cord Calculator
How many cords a firewood stack or woodshed holds, and how big a shed you need.
Loft Insulation Calculator
How many rolls of loft insulation for one or two layers, and the depth they build up to.
Yield and Trim Calculator
The yield of a product after trim, what the usable part really costs, and the waste cost.
Recipe Scaler
Scale a recipe up or down by portions, or to the amount of one ingredient you have.
Browse by job
See all 5 jobsCalculators for starting out, and for the sums a growing season throws at you.
Know what each delivery really pays, whatever you ride or drive.
Know how much to buy and what it will cost, before you start your first project.
Know what you really take home from every shift.
Cost it, price it, prep it: the kitchen maths without the spreadsheet.