The Runner's Journal · Free running tools

Running tools.
Better decisions.

Free running calculators for pace, race splits and pre-run fuel, plus practical tools to understand training, recovery and the runs that do not go to plan.

Explore the tools

Start with a question

What do you need today?

Each tool gives you the useful answer first, then explains the reasoning and connects you to a relevant running guide.

01Calculate

Runner's Toolkit

Train. Understand. Fuel. Race.

Train

Pace and Splits CalculatorGoal time, pace and even splits
Running Plan BuilderTraining built around your week
Training Types GuideEasy, tempo, threshold and intervals
Running and StrengthFit both into one useful week
Personal Training with CharlotteEnquire about one-to-one support

Understand

Run DecoderWhy a run may have felt so hard
VO2 Max ChangesWhat a falling watch estimate means
Recovery ScoresGarmin, WHOOP and Oura explained
Female Runner Health HubPeriods, fuel, iron and training

Fuel

Pre-Run Fuel CalculatorCarbohydrate target and food ideas
Carbohydrates for RunnersUnderstand the body's main race fuel
Energy Gel GuideHow gels work and when to take them
Gut Training GuidePractise taking fuel comfortably

Race

UK Race FinderCompare 23 running events
Race Day PrepPace, fuel, taper and packing plan
Race Split CalculatorBuild even kilometre or mile splits
Marathon Taper GuideReduce load without losing readiness

Running tools.Better decisions.

What pace matches my race goal?

Why did my run feel so hard?

Pre-run fuel, made practical.

Train

Understand

Fuel

Race

Your recent tools.

Running tools.
Better decisions.