THE NUMBERS AROUND A DECISION
A sale, a trip, a growing project, a goal. Start with the tools that belong together, then keep the assumptions beside your results.
START WITH THE COSTS THAT KEEP COMING BACK
Streaming, AI, software and memberships. Use actual charge dates, review what still earns its place, and export a dated plan.
PRICE THE PROJECT. PLAN THE SHIPMENT.
Bring time, materials, overhead and target margin into a worksheet. Compare scenarios A and B, then export or print the assumptions behind the price.
Example: 1,400 in costs at a 30% target margin gives a 2,000 pre-tax price.
Open project pricing →Combine carton dimensions, quantities and weights. Compare packing scenarios, inspect CBM and dimensional weight, and import or export a usable shipment summary.
Open shipping workbench →Check the smaller pieces: work hours, contractor rates, or concrete quantities.
CARDS & COLLECTIBLES
Enter the purchase, grading, shipping and fee assumptions before calling a sale profitable. Keep a monthly business scenario beside it.
Does the net sale justify the cost and time?
Preview this workspaceROAD TRIPS
Compare entered fuel and EV energy scenarios, then check a dated arrival time. Bring your route distance and actual tariffs.
What changes if distance, consumption or charging power changes?
Preview this workspaceSOLAR & ELECTRIC VEHICLES
Explore a daily solar-energy target and a trip’s charging energy. Both use editable assumptions; neither supplies an installation design or station feed.
Which measurement would improve this estimate?
Preview this workspaceGAMES & WEBSITES
Use measured safe capacity to estimate server quantities and reserve. Keep the recurring cost beside a revenue scenario and unit converter.
What capacity survives the busiest moment?
Preview this workspaceBONSAI & TERRARIUMS
Scale your chosen substrate mix and keep a length converter nearby for container measurements. Species, climate and care choices remain yours to verify.
How much of each material should be on the shopping list?
Preview this workspaceDEBT & SAVINGS
Model one fixed-rate debt and a savings target separately. Compare an entered extra payment or deposit with a zero-interest starting scenario.
What does a sustainable monthly contribution change?
Preview this workspaceMINING OPERATIONS
Enter a daily-revenue assumption, measured wall power and electricity tariff. Keep the equipment outlay separate from operating surplus.
Does the scenario still work when revenue falls or power costs rise?
Preview this workspaceLEARNING & CURIOSITY
Build a scale comparison from stated lengths, units and gaps. Keep the assumptions visible before sharing a striking number.
Which assumption makes the headline so surprising?
Preview this workspacePreviewing a recipe lets you add its tools to your existing canvas. It does not replace your work. Each widget keeps independent inputs; values are not automatically transferred between calculators. Save a snapshot when an answer is worth retaining, and export a copy when you need a portable record.
Open your canvasRead the methods and worked examples →