1:45 Half Marathon Pace Calculator

Calculate exact pacing for a 1:45 half marathon. Get km-by-km splits to break 1 hour 45 minutes. Target pace: 4:58/km (8:00/mi).

Target Pace for Half Marathon
4:59 /km(8:01 /mi)

Select Distance

Unit System

h
:
m
m
:
s
min/mi
Distance
Half Marathon
Pace (min/mi)
8:01
Speed (mph)
7.5
Finish Time
1:45:00

Race Splits

DistanceTimePace
3.1 mi24:538:01 /mi
6.2 mi49:468:01 /mi
9.3 mi1:14:398:01 /mi
12.4 mi1:39:328:01 /mi
13.1 mi1:45:008:01 /mi

What pace do I need for a 1:45 half marathon pace?

To achieve a 1:45 half marathon pace, you need to maintain a consistent pace of 4:59 per kilometer or 8:01 per mile throughout the entire Half Marathon distance.

Pacing Strategy

Successful race pacing requires more than just knowing your target pace. Here are key strategies for achieving your goal:

  • Start conservatively: Begin slightly slower than your target pace (5-10 seconds per km slower) for the first 10-15% of the race to conserve energy.
  • Settle into rhythm: Find your target pace and maintain it for the middle portion of the race. This is where consistency matters most.
  • Finish strong: If you have energy in reserve, you can gradually increase pace in the final 10-20% of the race.
  • Know your splits: Use the splits table above to track your progress at key checkpoints during the race.

Training Tips

To successfully achieve a 1:45 half marathon pace, your training should include:

  • Long runs: Build endurance at a comfortable pace, typically 60-90 seconds per km slower than race pace.
  • Tempo runs: Practice running at or slightly faster than your target race pace for sustained periods.
  • Interval training: Improve your speed and VO2 max with faster interval sessions.
  • Race pace practice: Include segments of your long runs at goal race pace to develop race-specific fitness.

Race Day Checklist

  • Review your pacing strategy and splits
  • Set your watch or app with target pace alerts
  • Plan nutrition and hydration based on your goal time
  • Warm up properly with easy jogging and dynamic stretches
  • Trust your training and stick to your plan