Nine tools that do the arithmetic for you

Each tool takes the numbers you already have, computes on the spot, and prints the formula it used. Nothing here asks for an account, and nothing here fetches a rate or a price from anywhere: every figure that moves is a figure you typed.

9 toolsParameters checked 2026-10-06Two of the nine are original to this site

Resale margin

Add up everything a parcel costs before it reaches you, then see what a resale price leaves behind.

computed herechecked 2026-10-06
Open Resale margin

Merge planner

Decide whether combining parcels saves freight, once the volume discount, reinforcement fees and any storage overage are counted.

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Open Merge planner

QC photo coverage

Turn a pile of inspection photos into a coverage figure, a three-state verdict and a list of the shots that are still missing.

computed herechecked 2026-10-06
Open QC photo coverage

List export

Take the rows you filtered out of the sampled list and paste them into a spreadsheet or a note without retyping them.

computed herechecked 2026-10-06
Open List export

Reading protocol

Run one row through four checks and get a go, a check first or a hold, together with the evidence that is still missing.

original to this sitechecked 2026-10-06
Open Reading protocol

Cost waterfall

Stack every line between a list price and a parcel in your hands, and see which two lines carry the most weight.

original to this sitechecked 2026-10-06
Open Cost waterfall

How these tools are built

Every tool on this page runs the same way: you type numbers, a pure function computes, and the result appears next to the inputs as you type. The functions live in one place, they never call the network, and each of them has fixed cases with expected values that are checked before the site is built.

The parameters that belong to somebody else — an exchange rate, a service rate, a storage day count — are yours to change. Every page prints Parameters checked 2026-10-06, and adds manual the moment you change one of those values, so a figure you altered is never mistaken for one we recorded.

Compare with the live Kakox channel

Outbound links to Kakox are tracked so the destination can attribute the visit. They do not change what this page says, and nothing here is sold by us.