Don't get pumped.
As of 23 September 2026, the cheapest unleaded petrol in Boulder, WA is 240.9c per litre at Astron, Boulder. Prices range from 240.9c to 244.9c across 2 stations, averaging 242.9c per litre.
Compare fuel prices from 2+ stations in Boulder. Average: 242.9c/L
Last updated: 08:00 AM, 23 Sep 2026
Petrol prices in Boulder currently range from 240.9c to 244.9c per litre for unleaded fuel, with motorists paying an average of 242.9c/L. We're tracking live prices from 2 service stations, which means you could save up to $2.00 on a 50L tank simply by choosing the right station. View all Western Australia prices for broader comparisons.
Compare all fuel types in Boulder: Unleaded (ULP) from 240.9c/L, Diesel from 277.9c/L, Premium 95 from 253.9c/L, Premium 98 from 268.9c/L. Each fuel type page shows the cheapest stations in the area, helping you find the best deal whether you need regular unleaded, premium fuel, or diesel.
Perth's fuel market follows a predictable weekly cycle with swings of 20-30c per litre. Watch for the price drop (often Tuesdays) and fill up then rather than waiting for prices to climb again. Check our Best Time to Fill Up guide for detailed advice.
Prices for Boulder are sourced from WA FuelWatch and community-verified reports, updating continuously throughout the day. Compare prices by brand or view our full station directory for more options.
Perth follows a strict weekly price cycle. Prices jump sharply on Wednesday and then ease for the rest of the week, reaching their lowest point on Tuesday.
Check individual station prices in Boulder
Based on historical price patterns in Boulder, Wednesday tends to offer the best prices. Midweek can be a sweet spot before weekend price hikes.
| Rank | Station | Brand | Suburb | Price | Updated |
|---|---|---|---|---|---|
| Astron Boulder Kalgoorlie | Astron | Boulder | 240.9c | Today, 8:00am | |
| Astron Boulder Kalgoorlie | Astron | Boulder | 240.9c | Today, 6:06am | |
| Reddy Express Boulder | Reddy Express | Boulder | 244.9c | Today, 8:00am | |
| 4 | Reddy Express Boulder | Reddy Express | Boulder | 244.9c | Today, 6:06am |
| Rank | Station | Brand | Suburb | Price | Updated |
|---|---|---|---|---|---|
| Astron Boulder Kalgoorlie | Astron | Boulder | 277.9c | Today, 8:00am | |
| Astron Boulder Kalgoorlie | Astron | Boulder | 277.9c | Today, 6:06am | |
| Reddy Express Boulder | Reddy Express | Boulder | 297.9c | Today, 8:00am | |
| 4 | Reddy Express Boulder | Reddy Express | Boulder | 297.9c | Today, 6:06am |
| Rank | Station | Brand | Suburb | Price | Updated |
|---|---|---|---|---|---|
| Astron Boulder Kalgoorlie | Astron | Boulder | 253.9c | Today, 6:06am | |
| Astron Boulder Kalgoorlie | Astron | Boulder | 253.9c | Today, 8:00am | |
| Reddy Express Boulder | Reddy Express | Boulder | 262.4c | Today, 8:00am | |
| 4 | Reddy Express Boulder | Reddy Express | Boulder | 262.4c | Today, 6:06am |
| Rank | Station | Brand | Suburb | Price | Updated |
|---|---|---|---|---|---|
| Astron Boulder Kalgoorlie | Astron | Boulder | 268.9c | Today, 8:00am | |
| Astron Boulder Kalgoorlie | Astron | Boulder | 268.9c | Today, 6:06am |
Find the best value by suburb - average unleaded petrol prices:
| Suburb | Stations | Average Price | Cheapest Price |
|---|---|---|---|
| Boulder | 2 stations | 242.9c | 240.9c |
Save money at these stations with the lowest ULP prices. Prices shown for all available fuel types:
| Station | Address | Brand | ULP | E10 | Diesel | P95 | P98 | Updated |
|---|---|---|---|---|---|---|---|---|
| Astron Boulder Kalgoorlie | 26 Davis St | Astron | 240.9c | - | 277.9c | 253.9c | 268.9c | Today, 8:00am |
| Reddy Express Boulder | 35 Frank St | Reddy Express | 244.9c | - | 297.9c | 262.4c | - | Today, 8:00am |
Avoid overpaying - these stations have the highest ULP prices:
| Station | Address | Brand | ULP | E10 | Diesel | P95 | P98 | Updated |
|---|---|---|---|---|---|---|---|---|
| Reddy Express Boulder | 35 Frank St | Reddy Express | 244.9c | - | 297.9c | 262.4c | - | Today, 8:00am |
| Astron Boulder Kalgoorlie | 26 Davis St | Astron | 240.9c | - | 277.9c | 253.9c | 268.9c | Today, 8:00am |
Savings Tip: Price difference between cheapest (240.9c/L) and most expensive (244.9c/L): 4.0c per litre. On a 50L tank, choosing the cheapest station saves you $2.00!
Compare fuel prices in these nearby locations:
Boulder has 2 petrol stations. Right now, ULP (unleaded petrol) prices in Boulder range from 240.9c/L to 244.9c/L (a difference of 4.0c/L).
Real-time data updated continuously from official government sources and community reports. We track live prices from major fuel brands including Ampol, Shell, BP, 7-Eleven, Coles Express, and independent service stations. The current average price is 242.9c/L (last updated: 08:00 AM, 23 Sep 2026).
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