Paint tools
None of them ask for your email, none of them upload anything to a server, and none of them hand you a confident number without showing where it came from. Each one prints the arithmetic or the source behind its answer, so you can argue with it instead of just believing it.
Room by room: gallons of primer, wall color, ceiling paint and quarts of trim enamel. What makes it different is that it prints the whole arithmetic — perimeter times height, minus the openings, divided by your texture’s coverage, times coats, times the waste factor. You can check every number by hand.
Upload a photo, tap the color you want, and find the closest equivalent across seven brands. It compares in CIELAB using CIEDE2000, which is how the human eye measures color difference — not the naive RGB distance most online matchers use.
Four questions — what surface, how much traffic, how much moisture, how good is the wall under it — and it returns a recommended sheen with its reasoning, a defensible alternative, and what to avoid. Where the sources disagree, as they do on bathrooms and kitchen walls, you get both sides.
A day-by-day schedule that shows you where the waiting is. The core idea: duration is rarely set by labor, it is set by recoat windows. A trim enamel with a 16-hour recoat is a three-day job no matter how many painters show up.
Most paint calculators on the internet exist to capture your email. They hand you a round number with no units and no sourcing, then ask for a phone number to "send you the results." These do not. They run entirely in your browser, there is no server behind them, and you can close the tab without leaving anything behind.
The other difference matters more. A number without its derivation cannot be checked. If a calculator tells you three gallons and will not tell you at what coverage rate, over how many coats, with how much waste, you have no way to know whether it will be enough. These print the whole chain. If you think one of our assumptions is wrong, you can change it.
None of these is a quote. Surface condition is the single most important cost driver in a painting job, and no tool can read it off a screen. Walls that need patching, sanding and priming cost significantly more than walls that do not. Any square-foot price that ignores condition will mislead you.
They also do not replace a physical sample. Screen colors are approximations, and paint changes with light, sheen and the surface under it. Look at a large sample in the actual room, in daylight and at night, before you buy the gallons.
An estimate comes from walking the house: the condition of the walls, the light that hits them, the trim that is already there. Free estimates, in English or Spanish.