Maple Syrup Calculators

Quick calculators for every step of the season, from tapping to bottling. Every number is computed, not guessed.

Sap → Syrup

How much sap makes a gallon of syrup? (Jones' Rule of 86)

Sap sugar content (%) Sap you have (gallons) - optional

Taps & Season Yield

How many taps, and how much syrup to expect?

Number of trees

Avg diameter (in)

Sap sugar content (%)

Finish Point

What temperature = finished syrup today?

Boiling point of water today (°F)

Not sure? Boil water and read your thermometer - barometric pressure & altitude shift it.

Density Check (Brix)

Is it done? Target is 66–67% sugar.

Your reading (°Brix / % sugar)

Boil-Off Time

How long to boil down your batch?

Sap to boil (gallons)

Sugar (%)

Rig rate (gal/hr)

Batch Planner

Work backwards from a syrup goal.

Syrup you want (gallons) Sap sugar content (%)

Formulas verified against UVM/OSU Extension (Jones' Rule of 86) and USDA density standard (≥66 Brix).
Enter your numbers above and each tool updates instantly.