Bow Rehair Timeline Calculator

Estimate when your string instrument bow needs a rehair based on usage, climate, and current condition.

Playing Hours per Week

hrs

Climate Humidity

Bow Type

Current Hair Condition (1-10)

Tab to move between fields

Rehair In

20 weeks

Estimated Cost$65.00

Hair Strands150

Play Hours Until Rehair140 hrs

Urgency Score (1-10)4

How to Use This Calculator

Enter Playing Hours per Week, Climate Humidity, and Bow Type.
Set Current Hair Condition (1-10).
Review the Rehair In (weeks) result.
Use Estimated Cost ($) and Hair Strands to inform your decision.
Use the chart to visualize the results and explore different scenarios by adjusting inputs.

How the result changes with Playing Hours per Week

Playing Hours per Week: Average hours you play per week.
Climate Humidity: 1=Dry, 2=Moderate, 3=Humid. Dry climates dry out bow hair faster.
Bow Type: 1=Violin, 2=Viola, 3=Cello, 4=Bass.
Current Hair Condition (1-10): 10=Like new, 1=Very worn. Rate the current state of your bow hair.

Identify Input Parameters
4 parameters
Playing Hours per Week = 7, Climate Humidity = 2, Bow Type = 1, Current Hair Condition (1-10) = 7 = 4 input(s) provided
Calculate Rehair In
Rehair In
20 = 20
Calculate Estimated Cost
Estimated Cost
65 = $65
Calculate Hair Strands
Hair Strands
150 = 150

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