Tank Volume Calc: Dip Chart

Tank Volume Calculator gives you the exact volume of a tank at any liquid level. Enter the dimensions once, then read the volume, the percentage full and the weight of the liquid, or work backwards from a volume to the dip level.

Built for fuel, water, oil and chemical tanks on farms, job sites, depots, marinas and plants.

FREE
• Horizontal cylinders, vertical cylinders and rectangular tanks
• Flat, elliptical, hemispherical and dished (torispherical) heads, conical bottoms
• Level to volume and volume to level
• Liquid density presets (diesel, gasoline, water, oil) and weight in kg, lb or tons
• On-screen dip chart in 1 mm to 1 in steps
• Metric, US and Imperial units: liters, gallons, barrels, cubic meters
• One saved tank, sample tanks, works fully offline

PRO — one-time purchase, no subscription
• Unlimited saved tanks with location and serial number
• PDF dip charts to print or send
• CSV export for Excel and Numbers
• Inspection history with notes and gauge photos

Head volumes are calculated by numerical integration of the real head profile, not a rule of thumb, so partially filled horizontal tanks stay accurate across the whole range.

Customers who bought the original paid version keep Pro for free.

Questions or a tank shape you need? Write to us from the support link.