TANNERD.NETCALCULATE · DECIDE · ACT
Get a fast answer when the math is simple. Use a decision tool when the real question is which option works best after time, risk, hidden costs, or a target constraint.
Start with the question.
Can the project actually work?
Model a build budget, compare build vs buy, price an ADU, test remodel decisions, and leave room for financing and overruns.
Beyond a single formula.
Compare competing choices, include hidden costs, and see what would need to change for a different option to win.
Material Buffer Optimizer
Optimize how much extra material to buy instead of using a flat waste percentage.
OPEN TOOL →MOVE DATE / OVERLAPMove Date Cost Optimizer
Choose a move date by total transition cost, not rent alone.
OPEN TOOL →PICKUP / DELIVERYMaterial Pickup vs Delivery Calculator
Decide whether pickup is actually cheaper than delivery.
OPEN TOOL →HOLD / MARKDOWN / LIQUIDATEReseller Hold vs Markdown Calculator
Choose the highest expected-value exit strategy for stale inventory.
OPEN TOOL →COMMUTE / MOVECommute vs Move Break-Even Calculator
Solve whether lower commuting cost can justify moving.
OPEN TOOL →FILL NOW / WAITFuel Stop Timing Calculator
Calculate how much gas to buy now before a cheaper fuel stop.
OPEN TOOL →PRIMER / EXTRA COATPrimer vs Extra Coat Cost Calculator
Compare painting plans economically while keeping substrate requirements separate.
OPEN TOOL →REPORTED / REALIZEDROAS Reality Check Calculator
Turn platform-attributed ROAS into a more conservative profit reality check.
OPEN TOOL →Tannerd Rules
Paste a Marketplace listing, test the deal against your profit rules, work out a safe offer, and turn a purchase into a ready-to-post resale plan.