Bolt SizesWorkshop
| Size | Pitch/TPI | Head |
|---|---|---|
| M3 | 0.5 | 5.5 |
| M4 | 0.7 | 7.0 |
| M5 | 0.8 | 8.0 |
| M6 | 1.0 | 10.0 |
| M8 | 1.25 | 13.0 |
| 1/4" | 20 | 7/16" |
| 5/16" | 18 | 1/2" |
| 3/8" | 16 | 9/16" |
Automotive Reference Charts
Keep your vehicle in spec. Tire size calculators, bolt patterns, and pressure conversions for the garage.
Liters → GallonsFuel preset
| Liters | US gal | UK gal |
|---|---|---|
| 1 | 0.26 | 0.22 |
| 2 | 0.53 | 0.44 |
| 5 | 1.32 | 1.10 |
| 10 | 2.64 | 2.20 |
| 20 | 5.28 | 4.40 |
| 40 | 10.57 | 8.80 |
| 50 | 13.21 | 11.00 |
| 60 | 15.85 | 13.20 |
| 80 | 21.13 | 17.60 |
| 100 | 26.42 | 22.00 |
Liters to Gallons
Fuel, water, and beverage conversions between liters and US/UK gallons.
Customize & DownloadGallons → LitersVehicle preset
| US gal | Liters | UK gal |
|---|---|---|
| 0.50 | 1.89 | 0.42 |
| 1 | 3.79 | 0.83 |
| 2 | 7.57 | 1.67 |
| 5 | 18.93 | 4.16 |
| 10 | 37.85 | 8.33 |
| 15 | 56.78 | 12.49 |
| 20 | 75.71 | 16.65 |
| 25 | 94.64 | 20.82 |
| 50 | 189.27 | 41.63 |
| 100 | 378.54 | 83.27 |
Gallons to Liters
Convert US and UK gallons to liters for international standards, technical documentation, and global communication.
Customize & DownloadPSI → BarEngineering
| PSI | Bar | kPa |
|---|---|---|
| 10 | 0.69 | 69 |
| 20 | 1.38 | 138 |
| 30 | 2.07 | 207 |
| 32 | 2.21 | 221 |
| 35 | 2.41 | 241 |
| 40 | 2.76 | 276 |
| 50 | 3.45 | 345 |
| 60 | 4.14 | 414 |
| 80 | 5.52 | 552 |
| 100 | 6.89 | 689 |
PSI to Bar Chart
Professional PSI to Bar conversion table for tires, hydraulics, and diving. Includes kPa and atm.
Customize & DownloadTire SizesAutomotive
| Metric | Diam | Width |
|---|---|---|
| 195/65R15 | 25.0" | 7.7" |
| 205/55R16 | 24.9" | 8.1" |
| 215/60R16 | 26.2" | 8.5" |
| 225/45R17 | 25.0" | 8.9" |
| 225/65R17 | 28.5" | 8.9" |
| 265/70R17 | 31.6" | 10.4" |
| 285/70R17 | 32.7" | 11.2" |
| 285/75R16 | 32.8" | 11.2" |
| 315/70R17 | 34.4" | 12.4" |
| 35x12.5R17 | 35.0" | 12.5" |
Tire Size Chart
Convert metric tire sizes (e.g., 285/75R16) to actual inches. Essential for trucks, off-road, and stance.
Customize & DownloadWrench SizesWorkshop
| Size | M-Bolt | S-Bolt |
|---|---|---|
| 8mm | M5 | 5/16" |
| 10mm | M6 | - |
| 7/16" | - | 1/4" |
| 13mm | M8 | - |
| 1/2" | - | 5/16" |
| 17mm | M10 | - |
| 9/16" | - | 3/8" |
| 19mm | M12 | 3/4" |
| 3/4" | - | 1/2" |
Wrench Size Chart
Wrench sizes for common bolt heads with metric and imperial references.
Customize & DownloadGarage & Maintenance Reference
Proper vehicle maintenance requires adherence to specifications. Torque specs, fluid capacities, and tire pressures are critical for safety and longevity. These charts provide the quick conversions you need to interpret manuals and parts compatibility.
Frequently Asked Questions
What should my tire pressure be?
Always check the sticker inside your driver's door jamb. Do not use the 'Max Press' number on the tire sidewall.
How does temperature affect tire pressure?
For every 10°F (5.5°C) change in air temperature, tire pressure will change by about 1 PSI. Pressure drops in cold weather.
What does P225/60R16 mean?
225 is the width in mm, 60 is the aspect ratio (height is 60% of width), and 16 is the rim diameter in inches.