LPG gas cylinder remaining calculator
Weigh your LPG cylinder on any scale, enter its tare (empty) weight, and find out how much gas is actually left inside, in kilograms, percent full, cooking days remaining and rupee value.
Domestic cylinders in Nepal carry no gauge, so weighing is the only accurate way to check the fill level. Computed entirely in your browser.
Cylinder details
Full cylinder on a bathroom or kitchen scale, gas plus the metal body.
Stamped on the cylinder collar as "Tare Wt" or "T.W.". Varies by cylinder, so check yours.
Weight of LPG gas alone when the cylinder is brand new and full.
Rough household estimate is 0.4 kg/day; adjust to your own cooking habits.
Refill price you paid, to value the gas remaining inside.
Gas remaining
4.7 kg
33.1% full of a 14.2 kg net fill
Value left
Rs 654
Percent full
33.1%
Cooking days left
11.7
Net fill size
14.2 kg
Weighing the cylinder is the accurate way to check LPG remaining, since the gas is liquid and no visible gauge or float sits on a domestic cylinder. Tare weight is stamped on the cylinder's neck ring and varies a little between manufacturers and cylinder age, so use the figure on your own cylinder for the most accurate reading rather than the preset alone.
From a bathroom scale to gas remaining
Subtracting the tare weight from a weighed reading is the same method LPG distributors use to check a cylinder's fill level.
Weigh and subtract
Remaining gas = current weighed weight − tare (empty) weight, floored at 0 and capped at the net fill so the result always stays realistic.
Percent and days
Percent full = remaining ÷ net fill × 100. Cooking days left = remaining ÷ your average daily usage in kg/day.
Rupee value
Value left = (remaining ÷ net fill) × the price you paid for a full refill, a proportional share of what you last spent.
LPG cylinders, answered
Where do I find my cylinder's tare (empty) weight?+
Every LPG cylinder has its empty weight stamped on the metal collar or neck ring around the valve, usually marked "Tare Wt" or "T.W." in kilograms. It is set when the cylinder is manufactured and does not change, though it varies a little between cylinders, so always read it off your own cylinder rather than assuming the 15.3 kg preset.
Why weigh the cylinder instead of relying on a gauge?+
LPG is stored as a liquid, and most domestic cylinders in Nepal have no built-in level gauge or float indicator, so shaking or lifting the cylinder only gives a rough guess. Weighing on a scale and subtracting the tare weight is the accurate method, since it directly measures the mass of gas left inside rather than an indirect sign like sloshing sound or how heavy it feels.
What is a typical daily LPG usage for a household?+
It depends heavily on family size and cooking habits, but a small household cooking two to three meals a day often uses somewhere around 0.3 to 0.6 kg of LPG daily. The default of 0.4 kg/day here is only a rough midpoint, track your own refill frequency over a couple of cylinders for a more accurate personal figure.
Why is my calculated result 0% or 100% when the cylinder does not feel empty or full?+
The calculator floors the remaining gas at 0 kg and caps it at the net fill weight, since a weighing error, a wrong tare figure or a slightly overfilled refill can otherwise produce a negative or over-100% reading that is not physically possible. If your result looks off, double-check the tare weight stamped on your cylinder and re-weigh on a level, calibrated scale.
Does the net fill weight change for smaller or bigger cylinders?+
Yes. The standard domestic LPG cylinder in Nepal holds 14.2 kg of gas, but smaller 5 kg mini/portable cylinders and larger 45 kg commercial cylinders are also sold. Pick the matching size above, or enter a custom net fill weight if your cylinder does not match any of the presets.
Sources & data note
Based on the standard weigh-and-subtract method for estimating LPG remaining in a cylinder: remaining gas = weighed weight − tare weight. Tare weight is stamped on each cylinder and varies slightly by manufacturer and age; net fill and daily usage figures are typical domestic estimates. Always check your own cylinder's stamped tare weight for an accurate reading.