Brew constant-band temperature log calculator

Calculate time outside target band and time-weighted average with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use time outside target band and time-weighted average to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Measurement times (hours)
0,6,12,24
Measured temperatures (°C)
18,19,22,20
User lower target (°C)
18
User upper target (°C)
21
Time outside target band (hours)
8
Time-weighted average (°C)
20.25
Largest sampled band deviation (°C)
1

Try another scenario

Measurement times (hours)
1.0,6.0,12.0,24.0
Measured temperatures (°C)
18,19,22,20
User lower target (°C)
18
User upper target (°C)
21
Time outside target band (hours)
8
Time-weighted average (°C)
20.326087
Largest sampled band deviation (°C)
1
Calculation method

Calculation method

Time outside target band (hours)

Linear interpolation between measurements; exactly integrate duration outside band and trapezoidal average.

Time-weighted average (°C)

Linear interpolation between measurements; exactly integrate duration outside band and trapezoidal average.

Largest sampled band deviation (°C)

Linear interpolation between measurements; exactly integrate duration outside band and trapezoidal average.

Symbols and units
a
Measurement times (hours)
b
Measured temperatures (°C)
c
User lower target (°C)
d
User upper target (°C)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Entered target profile here is a constant band; linear readings between samples, no fermentation quality verdict. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. Entered target profile here is a constant band; linear readings between samples, no fermentation quality verdict.
Are these inputs private?

These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.

Share this page
Share this calculator

Leave unchecked to share the page without your entered values.