Tools
Cycling Calculators
Free cycling calculators to help you plan your tyre pressure, ride nutrition, hydration and more.
Built for real-world riders planning training rides, sportives, café rides and long days in the saddle.
Calculator hub
Cycling Fuel, Hydration & Sodium Calculator
Calculate how much carbohydrate, fluid and sodium you may need for your ride, then turn the results into a practical packing plan.
Cycling Tyre Pressure Calculator
Calculate a recommended starting tyre pressure based on rider weight, bike weight, tyre size, surface and riding conditions.
Open tyre pressure calculatorOpens getridepressure.com in a new tab.
Cycling Training Zone Calculator
Calculate your cycling power training zones from your FTP.
In development — check back soon.
Cycling Gear Ratio Calculator
Compare chainrings, cassette sizes, cadence and estimated speed in every gear.
In development — check back soon.
Cycling Climb Time Calculator
Estimate how long a climb may take based on rider weight, bike weight, power, gradient and distance.
In development — check back soon.
Tubeless Sealant Calculator
Estimate how much tubeless sealant to add based on wheel size and tyre width.
In development — check back soon.
Cycling Fuel, Hydration & Sodium Calculator
Get a practical starting point for what to eat and drink during your ride. Your results will include carbohydrate, fluid and sodium targets, plus an optional ride packing plan.
This calculator provides general guidance for healthy adult cyclists. Individual needs and tolerance vary. Practise your nutrition and hydration strategy during training.
Cycling fuelling and hydration questions
How many carbohydrates do I need per hour when cycling?
Most riders need somewhere between 30g and 90g of carbohydrate per hour, depending on how long and how hard they are riding. Short easy rides may need nothing at all, steady endurance rides of two to three hours typically sit around 45–75g per hour, and hard rides beyond two and a half hours can justify up to 90g per hour if you have practised it.
How much should I drink during a bike ride?
A practical starting range is 400–750ml per hour in mild British conditions, rising towards 700–1,000ml per hour in hot or humid weather. Use it as a starting point and adjust using thirst, weather and your own measured sweat rate rather than forcing fluid.
How much sodium do cyclists need?
Sweat sodium concentration typically ranges from roughly 400mg to 1,000mg per litre. Multiply your estimated fluid intake by that concentration to get a sensible starting point. Sodium supports fluid balance, but it is not a guaranteed cure for cramp.
How many bottles do I need for a long ride?
Divide your estimated total fluid by your bottle size and round up. A four-hour ride at 600ml per hour is roughly 2.4 litres, which is around four 600ml bottles — so plan a café or tap refill rather than carrying it all.
How many gels do I need for a cycling event?
Divide your total carbohydrate target by the carbohydrate per gel. A 300g target with 25g gels is twelve servings, though most riders mix gels with bars, chews, real food and carbohydrate drink to keep it palatable.
Do I need to eat during a one-hour bike ride?
Usually not. For an easy or steady hour, water is generally enough. If the hour is a hard interval session or a race effort, a small amount of carbohydrate — around 15–30g — can help.
How should I fuel for a sportive?
Start fuelling within the first 30 minutes, eat little and often rather than waiting until you feel hungry, and rehearse the exact products and hourly intake on training rides first. Plan feed-station and café stops into your fluid maths.
How can I calculate cycling tyre pressure?
Tyre pressure depends on total system weight, tyre width, rim type, surface and conditions. Our tyre pressure calculator at getridepressure.com gives a recommended starting pressure you can fine-tune by feel.
Put your plan into practice
Once you know what to carry, pick a ride. Browse our Warwickshire cycling routes, find a bike-friendly café stop for a bottle refill, or read our guide to planning a Warwickshire café ride.
Safety and disclaimer
This calculator provides general sports nutrition and hydration information for healthy adult cyclists. It does not provide medical advice and cannot account for every rider, health condition, medication, environmental condition or individual sweat response.
Practise any new fuelling or hydration strategy during training. People with diabetes, kidney disease, heart conditions, gastrointestinal conditions, metabolic disorders, food allergies or other relevant health conditions should seek individual advice from an appropriately qualified healthcare professional or sports dietitian.