Maple Syrup Calculator

Every calculator a sugarmaker needs, from first tap to final bottle.

Maple Syrup Calculator gathers the numbers you run before, during, and after the boil into one app built for the sugarhouse. Results compute live as you type — there's no "Calculate" button anywhere — and everything works fully offline, with no account required.

The hero: barometric finish temperature

Enter today's barometric pressure (or the measured boiling point of water) and get the exact temperature your syrup is done at, corrected for the day and your density target (66.0, 66.5, or 66.9 Brix). It's one tap from launch — the screen you'll open every boil day.

Finishing

• Hydrometer correction — true Brix corrected for test temperature, with an on-target / too-thin / too-thick read
• Thin / thick fix — water to add or volume to boil off to hit 66.9 Brix
• Batch blending — combine two batches into one blended volume and Brix

Planning

• Rule of 86 — gallons of sap per gallon of syrup from your sap Brix
• Boil time — hours, fuel quantity, and fuel cost for a batch
• RO savings — boil hours saved by concentrating sap first
• Season projection — expected syrup from your tap count and sap
• Taps per tree and pan capacity sizing

Packaging & money

• Bottle counts — how many of each container size a batch fills, plus leftover
• Weight ⇄ volume conversions at 11.02 lb/gal
• Cost & break-even — cost per gallon and a break-even price per bottle size
• Sugar yield — maple sugar weight from a volume of syrup

Confections

• Confection temperatures — target temps for cream, candy, and sugar, corrected to the day's boiling point

Built for the sugarhouse

• Giant, high-contrast result numbers you can read from across the shack
• One-thumb layout with large touch targets — friendly to wet or gloved hands
• Live results as you type; no Calculate button
• US or metric units, applied app-wide
• Light and dark themes
• Works with no signal — every calculation runs on the phone

Figures are guidance for planning your boil — always confirm final density with a calibrated hydrometer or refractometer before bottling.