Dip DensityGet the app

Dip to litres.
Density at 15 °C.

Tank charts for BPCL, IOCL and HPCL, and Table 53B, on your phone.

Get it on Google PlayFree calculators
  • 15+tank models
  • 12free calculators
  • Freeno ads, ever

Tank charts of

  • Bharat Petroleum
  • Indian Oil
  • Hindustan Petroleum

Try it here

Twelve free calculators

The same sums as the app, in your browser. Nothing you type leaves your phone.

Density at 15 °C calculatorHydrometer reading and temperature to density at 15 °C, by Table 53B.Dip to litres calculatorDip in cm, mm or bars to litres, for 15+ BPCL, IOCL and HPCL tanks.Density variation calculatorIs the tanker within ±3.0 kg/m³ of the invoice?Tanker unloading calculatorDip before and after against the invoice litres.Stock variation calculatorBook stock against dip stock, the MDG ±4% check.Volume correction factor calculator (Table 54B)Litres at any temperature to litres at 15 °C.

See all twelve

Dip to litres

Choose your tank, type the dip in cm or mm, and see the litres and the space left.

  • BPCL, IOCL and HPCL models from 8.4 KL to 70 KL
  • Two tanks of one size can differ, so you pick the model
  • Send the chart of a tank not on the list
Dip to litres screen of the app

Density at 15 °C

Type the hydrometer reading and the temperature. The answer comes from ASTM D1250 Table 53B.

  • The same table for every oil company
  • Petrol and diesel
  • Ready for the density register
Density at 15 °C screen of the app

Every reading kept

Each dip and density reading stays on your phone with its date and time.

  • Share a day, week or month as PDF
  • Or as a spreadsheet that opens in Excel
  • Send it on WhatsApp or by email
Every reading kept screen of the app

And the rest of the day’s work

Your tanks

Add each tank once with its company and model. Petrol is green and diesel is blue, everywhere.

Send a chart

Tank not on the list? Send a photo or PDF of its chart. It comes back as a tank in the app.

Tanker order

Type the litres and the rate of each fuel. The total fills itself; an empty rate takes the last one.

Connect BPCL

BPCL dealers can sign in with their own login to see today’s sale, tank litres and the newest fills.

Matches the chart

Each tank model is held to its company’s printed chart, within a litre or two.

Private

Tanks and readings stay on your phone. No ads, no tracking.

Every figure has a source

Checked against the companies’ own charts

Each tank model carries the document it came from. The app’s tests hold every model to its printed chart within a litre or two.

  • BPCLCharts RE-DRG-381 and RE-DRG-382, and the sales officer’s calibration workbook
  • HPCLHP calibration charts for 9, 16, 22 and 35 KL
  • IOCLIndianOil calibration charts under IS 2166, with deadwood
  • ASTMD1250-80 Table 53B as printed, checked against its formula

Guides

Learn the sums behind the numbers

What is ASTM Table 53B?ASTM Table 53B turns a hydrometer reading at any temperature into density at 15 °C for petrol, diesel and kerosene. What it is, how to read it, and why pumps use it.Read How to check petrol quality and quantity at a pumpFive checks any customer can ask for at an Indian petrol pump: the zero on the meter, the filter paper test, the density on display, the 5 litre measure, and the complaint book.Read How to take a dip readingStep by step: how to dip a petrol pump's underground tank, read the rod, check for water with paste, and turn the dip into litres, with the mistakes to avoid.Read How to receive and decant a tankerEvery step of receiving a tanker at a petrol pump as MDG 2024 sets it out: invoice checks, seals, compartment dips, water paste, density within ±3 kg/m³, samples and the 50 litre composite check.Read Stock variation: the 4% ruleHow petrol pump stock is verified: opening dip plus receipts less sales gives book stock, compared with the closing dip within ±4%. The MDG 2024 method with a worked example.Read What every petrol pump must give youWhat every petrol pump in India must give customers under the oil companies' MDG 2024: free air with a calibrated gauge, a clean toilet, telephone, first aid, prices, complaint book and contacts.Read

All guides हिंदी गाइड

Questions

Is the app free?

Yes. Dip Density Calculator is free on Google Play, with no ads and no account. The calculators on this site are free too.

Which tanks does it know?

15+ models from BPCL (8.4 to 70 KL), HPCL (9 to 35 KL) and IOCL (15 and 20 KL). If your tank is not there, send its chart from the app and we add it.

How does it work out the litres?

An underground tank is a horizontal cylinder with flat ends. The litres at a dip come from its inside diameter and length. IOCL prints a deadwood figure on its charts, which is taken off. The results match the companies’ printed charts within a litre or two.

Which density table does it use?

ASTM D1250-80 Table 53B, the table the Marketing Discipline Guidelines name. It is the same for IOCL, BPCL, HPCL and private companies.

Is it made by an oil company?

No. The app is independent and not linked to BPCL, IOCL, HPCL or any oil company. Your certified calibration chart and approved instruments always prevail.

Does it work without internet?

Yes. Dip, density and your readings all work offline. The internet is only needed to send a chart or to connect to BPCL.

Put the dip chart and Table 53B in your pocket.

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