Bathtub Calculator
Calculate bathtub water capacity, fill time, and cost. Check if your water heater can handle a full bath.
Bathtub Details
Tub Type:
in
in
in
50 gal
20 gal100 gal
$
Average: $0.004 - $0.006 per gallon
Usable Water Capacity
76.4 gallons
(289 liters)
May Run Out of Hot Water
Hot water needed: 53.5 gal (Your heater: 50 gal)
🛁Total Capacity
109.1 gal
⏱️Fill Time
31 min
⚖️Water Weight
637 lbs
💧Cost per Fill
$0.38
Monthly Cost Estimate:
$4.58/month
Based on 12 baths per month
Bathtub Size Guide
Standard Alcove
60" L x 30" W x 14-16" D
35-50 gallons
Soaking Tub
66"+ L x 32"+ W x 18-24" D
60-100 gallons
Whirlpool
72" L x 42" W x 20" D
60-80+ gallons