Running belt or running vest?

For runs under 90 minutes with just a phone and keys, a belt is fine. For longer runs with multiple gels, snacks and fluid, a vest distributes weight better.

Do running belts bounce?

Good running belts with elasticated straps and snug fit should not bounce. Look for belts that sit on the hips rather than the waist for less movement.

Can I wash a running belt?

Most running belts can be hand-washed with mild soap and air dried. Check the manufacturer instructions for your specific model.

RunCalcs

Running Belt Calculator — What Belt Do You Need?

Calculate what running belt or vest capacity you need for your runs.

Run Duration

Number of Gels

Carry Phone

Carry Gels/Snacks

Carry Keys/Card

How We Calculate This

Belt Capacity Guide

The right carrying solution depends on what you need to bring:

Slim belt/arm band: Phone + keys only

Standard belt: Phone + 2-3 gels + keys

Large belt or vest: Phone + 4+ gels + fluid + extras

This calculator counts your items and recommends the appropriate capacity.

Frequently Asked Questions

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Last updated: February 2026

All calculations are estimates. Always consult a coach or medical professional for personalised training advice.