Oil Price API Documentation - Quick Start in 5 Minutes | REST API
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Fuel Savings Calculator

Calculate how much you could save on fuel costs by optimizing your driving habits, vehicle choice, or fuel timing with real-time price data.

Interactive Fuel Savings Calculator

+------------------------------------------+
|  FUEL SAVINGS CALCULATOR                 |
+------------------------------------------+
|  Current Vehicle MPG:    [____]          |
|  Target Vehicle MPG:     [____]          |
|  Monthly Miles:          [____]          |
|  Current Fuel Price:     $3.45/gal (live)|
+------------------------------------------+
|  [CALCULATE SAVINGS]                     |
+------------------------------------------+
|  Results:                                |
|  - Monthly Savings:      $____           |
|  - Annual Savings:       $____           |
|  - 5-Year Savings:       $____           |
+------------------------------------------+

How This Calculator Works

The Fuel Savings Calculator uses live fuel price data from OilPriceAPI to provide accurate, up-to-the-minute cost projections. Unlike static calculators that use outdated prices, this tool fetches current gasoline and diesel prices to ensure your savings estimates reflect real market conditions.

The Formula

Monthly Fuel Cost = (Monthly Miles / MPG) × Price per Gallon
Monthly Savings = Current Vehicle Cost - Target Vehicle Cost

Powered by OilPriceAPI

This calculator retrieves real-time fuel prices through the OilPriceAPI prices endpoint. The same data powers financial applications, fleet management systems, and energy trading platforms worldwide.

API Endpoint Used

GET https://api.oilpriceapi.com/v1/prices/latest?by_code=GASOLINE_US,DIESEL_US

Sample Response

{
  "status": "success",
  "data": {
    "prices": [
      {
        "code": "GASOLINE_US",
        "price": 3.45,
        "currency": "USD",
        "unit": "gallon",
        "updated_at": "2024-01-15T14:30:00Z"
      }
    ]
  }
}

Use Cases for Fuel Savings Calculations

Personal Financial Planning

Estimate how much switching to a more fuel-efficient vehicle could save you annually. Factor in real fuel prices rather than guesses to make informed purchasing decisions.

Hybrid and EV Comparison

Compare the total cost of ownership between traditional gasoline vehicles, hybrids, and electric vehicles. Use current fuel prices alongside electricity rates for comprehensive analysis.

Commute Optimization

Calculate whether carpooling, working from home, or changing commute routes would meaningfully impact your fuel budget based on current prices.

Fuel Timing Strategy

With access to historical price trends through OilPriceAPI, determine if filling up at certain times or days yields consistent savings.

Building Your Own Fuel Calculator

Developers can integrate real-time fuel prices into custom calculators, mobile apps, or fleet management dashboards using OilPriceAPI.

JavaScript Implementation

async function calculateFuelSavings(currentMpg, targetMpg, monthlyMiles) {
  const response = await fetch('https://api.oilpriceapi.com/v1/prices/latest?by_code=GASOLINE_US', {
    headers: { 'Authorization': `Token ${process.env.OILPRICE_API_KEY}` }
  });

  const { data } = await response.json();
  const fuelPrice = data.prices[0].price;

  const currentCost = (monthlyMiles / currentMpg) * fuelPrice;
  const targetCost = (monthlyMiles / targetMpg) * fuelPrice;

  return {
    monthlySavings: currentCost - targetCost,
    annualSavings: (currentCost - targetCost) * 12,
    fiveyearSavings: (currentCost - targetCost) * 60
  };
}

Python Implementation

import requests
import os

def calculate_fuel_savings(current_mpg, target_mpg, monthly_miles):
    response = requests.get(
        'https://api.oilpriceapi.com/v1/prices/latest',
        params={'by_code': 'GASOLINE_US'},
        headers={'Authorization': f'Token {os.environ["OILPRICE_API_KEY"]}'}
    )

    fuel_price = response.json()['data']['prices'][0]['price']

    current_cost = (monthly_miles / current_mpg) * fuel_price
    target_cost = (monthly_miles / target_mpg) * fuel_price
    monthly_savings = current_cost - target_cost

    return {
        'monthly_savings': monthly_savings,
        'annual_savings': monthly_savings * 12,
        'five_year_savings': monthly_savings * 60
    }

Frequently Asked Questions

How often are fuel prices updated? OilPriceAPI updates fuel prices multiple times daily from official market sources, ensuring calculations reflect current market conditions.

Can I use this for diesel vehicles? Yes. The API provides both gasoline and diesel prices. Simply adjust the commodity code to DIESEL_US for diesel calculations.

Is this calculator available for other countries? OilPriceAPI provides fuel prices for multiple regions. Contact us for availability in your market.

Start Building with Real-Time Fuel Data

Ready to integrate live fuel prices into your own applications? OilPriceAPI provides reliable, accurate pricing data for developers and businesses.

Sign Up for API Access - Free tier includes 1,000 requests per month.

Explore our API documentation to see all available endpoints and commodity types.

Last Updated: 12/28/25, 12:24 AM