PaceSmith

PaceSmith provides free online calculators for runners to convert race pace, treadmill incline, and altitude into equivalent outdoor running paces. The tools are based on published research equations and display their methods transparently.

The short feature · 1 min read

PaceSmith, at a glance

Company-sourced feature

Built for · Recreational and competitive runners who need to adjust training or race paces for different conditions such as treadmill running or altitude.

Based on company material. Product claims are attributed to the company.

01
The problem
Runners often struggle to accurately convert treadmill speeds, inclines, or altitude conditions into equivalent outdoor paces. Generic rules of thumb or unvalidated tools may lead to incorrect training targets or race predictions.
Sources [1]
02
The product approach
PaceSmith offers three calculators—race pace/finish time, treadmill pace conversion, and altitude adjustment—each built on a single published research equation. The tools show the underlying method and its limitations, avoiding unsupported approximations.
Sources [1]
03
What stands out
Unlike generic pace calculators, PaceSmith explicitly cites the research behind each equation (e.g., ACSM metabolic equation for treadmill grade, Peronnet et al. model for altitude) and displays a range of predictions rather than a single value, accounting for model variability.
Sources [1]

What could be hard to replicate?

A useful product is not automatically a moat. These mechanisms need evidence of a lasting advantage.

Data advantage
Company claim
Transparency of methodology: Each calculator names its published source and states the model’s limits (e.g., altitude up to 4,000 m, distance ranges), reducing reliance on unverified approximations.
Mechanism → evidence check
Does exclusive data improve the product in a way competitors cannot reproduce?
Sources [1]

The question to watch

While the calculators are based on published research, the material does not provide evidence of user adoption or independent validation of the predicted pace ranges’ accuracy in real-world conditions.

Explore the evidence · 1 source

[1] PaceSmith company website
Company material · checked 31/10/2026
All calculations run in your browser. Treadmill Pace Calculator Convert treadmill speed and incline into the equivalent outdoor running pace. Using the ACSM running metabolic…

About

PaceSmith is a free running pace calculator built for runners and coaches. It calculates pace, time, and distance; includes treadmill pace and altitude-adjusted pace calculators; and generates printable pace charts. No signup — pick a race distance, enter a target time, and get your splits instantly.