Marathon Pace Calculator
Calculate your ideal marathon pace, generate mile-by-mile split tables, predict your finish time from a half marathon, and plan your pacing strategy.
Target Time to Pace
Enter your target marathon finish time to see the pace you need to hold per mile and per kilometer.
Pace per Mile
9:09
min/mile
Pace per Kilometer
5:41
min/km
Half Marathon Split
2:00:00
for even pacing
Pace to Finish Time
Enter your running pace to see your predicted marathon finish time.
Predicted Finish Time
3:55:58
Equivalent km pace
5:36
min/km
Marathon Time from Half Marathon
Enter your recent half marathon time. We multiply by 2.1 (optimistic, assumes great training and conditions) to 2.22 (conservative, safer target for first marathoners) to predict your marathon finish.
Optimistic (x2.1)
3:51:00
Great fitness, flat course, perfect day
Realistic (x2.15)
3:56:30
Solid training, average conditions
Conservative (x2.22)
4:04:12
First marathon, hilly course, warm weather
Mile-by-Mile Split Table
Based on your target time of 4:00:00, here is your mile-by-mile pacing plan. Choose a strategy:
Wall Mile Calculator
What happens to your finish time if you slow down after mile 20? Enter your target pace and how much you expect to slow down per mile in the final 10K.
Without Wall
3:55:58
Even pace throughout
With Wall
3:59:05
Slowing after mile 20
Time Lost
3:07
added to your finish
Common Marathon Finish Times
Here are common marathon finish times with their per-mile and per-kilometer paces. The average marathon finish time worldwide is around 4:30 for men and 4:55 for women. Any finish time is a great finish time.
Marathon Pacing Strategies
How you distribute your effort across 26.2 miles matters more than your raw fitness. Here are the four main pacing strategies, how they work, and who should use each one.
Even Split
Run the same pace for every mile from start to finish. This is the simplest strategy and works well for experienced runners who know their body and their target pace inside out.
Pros
Predictable, easy to plan, works well on flat courses
Cons
Requires excellent pacing discipline from mile 1
Best For
Experienced runners on flat courses
Negative Split
Run the second half of the marathon faster than the first half. Start 10 to 15 seconds per mile slower than target pace, run target pace through the middle miles, and pick it up in the final 10K. This is the strategy used by almost every world record marathon performance.
Pros
Prevents the wall, allows you to pass people late, optimal energy usage
Cons
Requires patience and confidence to hold back early on
Best For
Recommended for almost everyone, especially first-timers
Positive Split
Run the first half faster than the second half. This happens to most runners who go out too fast, but some people choose it deliberately when chasing a time goal on a course that has a downhill first half and uphill second half.
Pros
Can work on specific course profiles
Cons
High risk of hitting the wall, often leads to a painful final 10K
Best For
Only for specific course profiles with downhill start
Run/Walk (Galloway Method)
Alternate between running and walking at predetermined intervals throughout the entire race. Common ratios are 4:1 (run 4 minutes, walk 1 minute) or 5:1. The walk breaks reduce muscle damage and delay fatigue, often resulting in a faster overall time than continuous running for beginners.
Pros
Reduces injury risk, prevents the wall, great for first marathons
Cons
Takes mental discipline to walk when you feel good in the early miles
Best For
First-time marathoners, injury-prone runners, anyone over 50
Marathon Pace vs Half Marathon Pace
A common mistake is assuming your marathon pace will be the same as your half marathon pace. It will not. The marathon is a fundamentally different physiological challenge because of glycogen depletion, which typically does not affect half marathon runners.
As a general rule, your marathon pace should be 15 to 30 seconds per mile slower than your half marathon pace. Elite runners can get away with a 10 to 15 second difference because of their superior fat-burning efficiency and years of training. For beginner and intermediate runners, plan for 20 to 45 seconds slower.
Half Marathon to Marathon Pace Comparison
7:00/mi
7:15 to 7:30/mi
+15 to 30 sec
8:00/mi
8:20 to 8:40/mi
+20 to 40 sec
9:00/mi
9:25 to 9:45/mi
+25 to 45 sec
10:00/mi
10:25 to 10:50/mi
+25 to 50 sec
11:00/mi
11:30 to 12:00/mi
+30 to 60 sec
12:00/mi
12:30 to 13:00/mi
+30 to 60 sec
Turn Marathon Training Into an Adventure
Marathon training requires months of long runs, and staying motivated through every session is the real challenge. Motera turns each training run into a territory capture mission. Watch your city map transform as your mileage builds. By race day, you will have conquered more ground than most runners ever see.
Free GPS tracking, real-time territory capture, Fog of War exploration, XP leveling, and local leaderboards. Pair it with your marathon plan and never miss a training run.
MoteraFrequently Asked Questions
What is a good marathon pace for a beginner?
Most first-time marathoners finish in 4:00 to 5:30, which translates to a pace of roughly 9:10 to 12:35 per mile (5:41 to 7:49 per km). A pace that lets you hold a conversation during your long training runs is usually the right target for race day. Starting conservatively and finishing strong is far better than going out too fast and hitting the wall.
How do I calculate my marathon pace from a half marathon time?
Multiply your half marathon time by 2.1 to 2.2. The extra 10 to 20 percent accounts for the additional fatigue of doubling the distance. For example, a 1:45 half marathon predicts a marathon time of about 3:40 to 3:51. This is more accurate than simply doubling your half time, because the second half of a marathon is physiologically harder than the first.
Should I run even splits or negative splits in a marathon?
Negative splits (running the second half faster than the first) is the strategy used by most elite marathoners and produces the best results for recreational runners. Start 10 to 15 seconds per mile slower than your target pace for the first 10 miles, run target pace for miles 10 to 20, then gradually pick up the pace if you feel good. This approach prevents hitting the wall.
What happens if I slow down after mile 20 in a marathon?
Slowing down after mile 20 (the wall) is extremely common. Even losing 30 seconds per mile for the last 6.2 miles adds roughly 3 minutes to your finish time. Losing 60 seconds per mile adds about 6 minutes. Proper pacing in the first half and adequate fueling can minimize the slowdown. Use our wall mile calculator above to see exactly how a slowdown affects your time.
How accurate are marathon pace calculators?
Pace calculators are excellent for planning purposes but your actual race time depends on many variables: weather, course elevation, fueling, sleep, and how well your training went. Use the calculator to set a target range rather than a single number. Having a plan A (ideal conditions) and plan B (tough conditions) pace is smart race strategy.
What is the difference between marathon pace and training pace?
Marathon pace is the speed you aim to hold during the race itself. Training pace varies depending on the type of run. Most training runs should be 30 to 90 seconds per mile slower than marathon pace. Only tempo runs and marathon-specific workouts should be at or near marathon pace. Running too many training miles at marathon pace leads to overtraining.
How does marathon pace compare to half marathon pace?
Marathon pace is typically 15 to 30 seconds per mile slower than half marathon pace. The exact difference depends on your fitness and experience. Elite runners have a smaller gap (10 to 15 seconds), while beginners often see a 30 to 45 second difference. This is because the marathon demands more conservative pacing to avoid glycogen depletion.
Can I use walk breaks in a marathon and still hit my time goal?
Yes. The Galloway run/walk method is used by thousands of marathoners. Running 4 minutes and walking 1 minute can produce finish times similar to continuous running because the walk breaks reduce fatigue and prevent the late-race slowdown. Many runners using walk breaks actually finish faster than those who try to run the whole distance.
