Ice Fishing Auger Drilling Time Calculator

Ice Auger Drilling Time

Drilling time depends on auger type, ice thickness, blade sharpness, and battery state (for electric).

Typical drilling rates (per inch of ice depth):

Standard hole sizes:

How far a battery gets you:

Holes per charge with an 8-inch bit through 24 inches of ice, sharp blades, around 20°F. What matters is watt-hours, not the amp-hour number printed on the pack, because a 5 Ah pack at 40V holds two and a half times what a 5 Ah pack at 18V does.

Halve those in genuinely brutal cold. The ice auger battery calculator works this out for your own pack, bit size, and temperature.

Sharpness MATTERS: A sharp blade is roughly 2.5× faster on a hand auger and about 1.7× faster on a motor, and on an electric it saves battery in the same proportion. Replace blades:

• After hitting rocks, sand, or weeds (instant dulling)
• Once per season for moderate users
• Mid-season for heavy users (50+ holes/year)
• When drilling time noticeably increases

Battery temperature effects:

• 40°F+ (4°C+): 100% rated battery capacity
• 20-32°F (-7 to 0°C): 75-85% capacity
• 0-20°F (-18 to -7°C): 50-65% capacity
• Below -10°F (-23°C): 30-40% capacity, dramatic slowdown

This is a battery problem, not an ice problem, which is why the temperature setting on this calculator hits an electric auger hardest. A hand auger has nothing to flatten and a gas engine has a fuel tank. Cold does make the ice slightly harder and your hands slower, so the others take a small share of the penalty rather than none.

Cold-battery tips:

• Keep batteries inside warm coat between drillings
• Pre-warm batteries in heated car/cabin if possible
• Carry a backup battery for cold-weather trips
• Lithium batteries handle cold better than older NiMH/lead

Hand auger considerations:

• Blade condition matters more here than anywhere else. A dull set costs you around two and a half times the effort, and it is effort you supply personally.
• Fitness matters. Drilling 20 inches of ice by hand is real work, and doing it six times is a workout.
• A blade dressing kit ($25-50) extends blade life and is cheaper than a replacement set.
• Mora blades, the Swedish ones, tend to hold an edge longer than the budget sets that come bundled with big-box augers.
• Never drop a hand auger on the ice. It bends the shaft, and a bent shaft never drills straight again.

Multi-hole strategy: For setting up 6 tip-ups + jigging hole over 20" ice with 8-inch electric auger (3 sec/inch):

• 7 holes × 20 inches × 3 sec = 420 seconds = 7 minutes total drilling
• Add ~30 seconds per hole for repositioning = +3.5 minutes
• Total setup time: ~10-12 minutes

Common mistakes:

1. Forcing a dull auger: wears motor, drains battery 3× faster
2. Drilling at angle: auger goes off track, hole edge crumbles
3. Lifting prematurely: leaves slush, rebreaks ice
4. Not clearing slush between holes, refreezes, blocks tip-up flag
5. Drilling in afternoon sun: slush fills hole quickly; drill in shadow