Build Your Route Time Estimate
Enter your route details below and we'll calculate your estimated walking time using Naismith's Rule.
A Stronger You.
Your Estimated Time
| Component | Value | Calculation | Time |
|---|---|---|---|
| Distance | 12 km | 12 ÷ 5 km/h | 2 hrs 24 mins |
| Ascent | 800 m | 800 ÷ 600 m/h | 1 hr 20 mins |
| Additional Time | 0 mins | Manual allowance | 0 mins |
| Total Estimated Time | 3 hrs 44 mins | ||
A Simple Route Planning Estimate
Standard Naismith's Rule assumes approximately 5 km per hour on level ground and adds 1 hour for every 600 metres of ascent.
Distance time = distance ÷ 5 km/h
Ascent time = ascent ÷ 600 m/h
Total time = distance time + ascent time + any additional allowance.
What is Naismith’s Rule?
Naismith’s rule is a simple way to estimate how long a hike or mountain route will take. It assumes an average walking speed of 5 km per hour on the flat, plus 1 hour for every 600m of ascent. It’s a useful guide for planning your time, setting realistic goals and enjoying safer, more rewarding adventures in the hills and mountains.
SIMPLE TIME ESTIMATE
Straightforward
method to estimate
walking time.
INCLUDES ASCENT
Accounts for elevation
gain, not just distance
on the flat
USEFUL FOR ROUTE PLANNING
Helps you plan itineraries
and daily schedules.
GREAT FOR HILL WALKERS
Ideal for day hikes
and mountain routes
in the UK and beyond.
REALISTIC PLANNING
Set achievable goals
and make the most
of your time in
the outdoors.
SIMPLE STEPS. BIGGER JOURNEYS.
How The Calculator Works.
Get your estimated walking time in three simples steps.
STEP 1
Enter Your Route
Add your distance, total ascent and any additional time or conditions.
STEP 2
Apply Naismith’s Rule
Our tool generates a personalised night by night plan using proven guidelines.
STEP 3
Review Your Route
See your estimated time, breakdown and advice for your adventure.
PLAN SMARTER
How Naismith’s Rule Works
Naismith’s Rule provides a simple but effective way to estimate how long a hike or mountain route will take. It’s based on time for horizontal distance and additional time for uphill ascent, with a few important considerations.
1 hr per 5 km on the flat
Estimate 1 hour for every 5 kilometers of horizontal distance
+ 1 hour per 600m of ascent
Add 1 hour for every 600 meters of uphill ascent
Use it as a planning guide, not an exact prediction
Naismith’s Rule gives a realistic estimate, but actual times may vary based on conditions and your experience.
Adjust for terrain, weather and breaks
Factor in difficult terrain, poor weather and time for rest stops to make your estimate more accurate.
GO FURTHER WITH CONFIDENCE
When To Use Naismith’s Rule
Naismith’s Rule is a valuable tool for anyone heading into the hills or mountains. It helps you plan your time, set realistic goals and make safer, more enjoyable days in the mountains.
What Affects Accuracy?
Naismith’s Rule gives a solid estimate, but real world conditions can make your hike take longer or shorter than expected. Here are the key factors that can affect your time.
SIMPLE TOOLS. BIGGER ADVENTURES.
Why Naismith’s Rule Still Matters
Naismith’s Rule remains one of the most widely used tools in hill and mountain walking because it helps you set realistic expectations, compare route options and plan safer, more rewarding adventures.
It’s not about being exact — its about being prepared.
Set realistic expectations
Know what’s achievable and plan with confidence.
Compare route options
Choose the best route for your time and ability.
Improve your planning
Make better decisions and enjoy safer, more fulfilling days out.
“The mountains reward those who plan well”.
THELAKESCOACH
Who Is The Calculator For?
Naismith’s Rule is a versatile tool for anyone planning a hike or mountain route, from casual day walkers to experienced mountaineers. It helps you set realistic expectations and plan safer, more enjoyable adventures.
FREQUENTLY ASKED QUESTIONS
Practical Planning Notes
Get the most out of your route planning with these simple tips.