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Reference table

Fuel Savings Table: Annual fuel saving by Old fuel economy

Reference table of annual fuel saving for Fuel Savings across a range of old fuel economy values — exact, engine-computed figures you can read off at a glance.

By Arjun Desai, B.Tech (Engineering) · Updated Jun 2026 · 1 min read

This fuel savings reference table shows the annual fuel saving for a range of old fuel economy values, assuming a new fuel economy of 18 km/l, an annual distance of 15,000 km and a fuel price per litre of ₹100. Every figure is computed with the same engine that powers our Fuel Savings Calculator, so the numbers are exact.

Old fuel economyAnnual fuel savingLitres saved per year
3 km/l₹4,16,6674,166.7
6 km/l₹1,66,6671,666.7
9 km/l₹83,333833.3
12 km/l₹41,667416.7
18 km/l₹00.0
24 km/l-₹20,833-208.3
36 km/l-₹41,667-416.7
60 km/l-₹58,333-583.3
84 km/l-₹65,476-654.8
120 km/l-₹70,833-708.3

How to use this table

Find the row closest to your old fuel economy and read across to the annual fuel saving. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Fuel Savings Calculator for a precise answer.

Need a value that is not in the table? — the Fuel Savings Calculator does it instantly, for free, with the formula and a worked example built in.

Continue exploring automotive calculators with these tools: Engine Displacement Calculator, Compression Ratio Calculator, Horsepower to Torque Calculator, Gear Ratio Calculator, Tire Size Calculator.

Calculators in this guide

Frequently asked questions

Each cell is computed with the standard formula using exact arithmetic — the same calculation behind our Fuel Savings Calculator — so every figure is accurate for the stated assumptions.

Yes. The table covers common old fuel economy values; for any exact figure, enter your own numbers in the Fuel Savings Calculator.

Arjun Desai · B.Tech (Engineering)

Arjun Desai is an engineer who writes about the practical physics, electronics and energy calculations behind everyday technology.