Gym King Discount Codes | Exclusive 10% OFF | August 2025

Exclusive

Code

Exclusive extra 10% off Sale with this Gym King discount code

Ends: 05 Oct, 2025

Terms and Conditions

This promotion is: only valid on the retailer’s website; subject to availability; must be used before the expiration date; cannot be used in conjunction with other offers, promotions or discounts unless stated otherwise; may not apply to taxes or any other fees; and not transferable or redeemable for cash or credit. Some products may be excluded. There may be exclusions based on location. The price and discount displayed was correct at the time of publication. The retailer can change, pause or end this promotion at any time without notice. By using this promotion, you acknowledge that you have read and understood the above terms and conditions. For further details, please check the retailer’s website.

Exclusive

Reward

Exclusive Free £5 Amazon voucher when you spend over £80 at Gym King

Ends: 30 Sep, 2025

Terms and Conditions

1. The £5 Amazon.co.uk digital gift card giveaway (“Promotion”) is subject to the following terms and conditions. By entering the Promotion entrants will be deemed to have read and accepted these terms and conditions. 2. The Promotion is organised and operated by Future Publishing Limited trading as My Voucher Codes incorporated in England and Wales under company number 02008885, whose registered office is Quay House, The Ambury, Bath, BA1 1UA (“Promoter”). 3. The Promotion is open to all UK residents aged 18 years or over except employees of the Promoter, their families, agents and anyone else connected with the administration of the Promotion. 4. The Promotion will run from 10 Jul 2025 00:00 until 30 Sep 2025 23:59 (“Promotion Period”). 5. All entrants who during the Promotion Period: (i) subscribe to receive the Promoter’s electronic marketing; and (ii) Gym King confirms have spent £80 or more (Excluding all gift card purchases and top-ups and delivery or collection charges) at Gym King (the "Qualifying Purchase(s)") via the link provided on www.myvouchercodes.co.uk (“Promoter’s Website”) shall be eligible to receive a free £5 Amazon.co.uk (“Gift Card(s)”). 6. You will not be entitled to a Gift Card if you click on any other links or visit any other websites before making your purchase at Gym King or if you make use of any other offer or promotion in connection with your purchase which is provided by the Promoter or Gym King (including any discounts, codes, savings, credit and/or points). 7. Only one (1) entry per entrant during the Promotion Period shall be accepted. 8. Gift Cards redeemed against Gym King purchases will be available up to 90 working days following the date of the qualifying purchase. 9. Gift Cards may be downloaded via the “member section” of the Promoter’s Website. Entrants should note that Gift Cards may expire after a certain date and their use may be subject to the retailer’s own terms and conditions. 10. No entries from agents, third parties, organised groups or applications automatically generated by computers will be accepted. No incomplete or corrupted entries will be accepted. Any entries not made during the Promotion Period or otherwise in accordance with the entry instructions and these terms and conditions will be rejected. 11. The Promoter reserves the right to substitute, in its sole discretion, the Gift Card with an alternative award of equal or greater value. 12. The Promoter reserves the right to cancel the Gift Card in the event of: (i) the Qualifying Purchase being cancelled by {merchant name}; or (ii) the entrant cancelling, returning or part-exchanging the Qualifying Purchase. 13. The Promoter reserves the right to ask for satisfactory proof of identity, age and/or address as a condition of awarding the Gift Card. 14. The Promoter reserves the right to postpone, void, cancel, suspend, or amend the Promotion where it becomes necessary to do so. Any changes to the Promotion or these terms and conditions will be posted on the Promoter’s Website at www.myvouchercodes.co.uk. 15. Personal data submitted by entrants in connection with the Promotion will be processed by the Promoter in accordance with the Promoter’s privacy policy, which is available at www.myvouchercodes.co.uk/privacy. 16. To the maximum extent permitted by law, the Promoter, its agents and/or distributors will not in any circumstances be responsible or liable to compensate entrants or accept any liability for any loss, damage, personal injury or death occurring as a result of use of the Gift Card except where caused by the negligence of the Promoter, its agents, distributors and/or that of their employees. Your statutory rights are not affected. 17. The Promotion and these terms and conditions are governed by the laws of England and Wales and are subject to the exclusive jurisdiction of the English and Welsh courts.

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Enjoy 25% off selected orders when using this Gym King promo code

Only 1 Day Left

Terms and Conditions

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Get 25% off select purchases when using this Gym King promo code

Only 3 Days Left

Terms and Conditions

Code

Enjoy 25% off orders when using this Gym King voucher code

Ends: 27 Aug, 2025

Terms and Conditions

Code

Save 20% on first orders when using this Gym King discount code

Only 1 Day Left

Terms and Conditions

This promotion is: (i) only valid on the retailer's website; (ii) subject to availability; (iii) must be used before the expiration date; (iv) cannot be used in conjunction with other offers, promotions or discounts unless stated otherwise; (v) may not apply to taxes or any other fees; and (vi) not transferable or redeemable for cash or credit. Further important things to note about this promotion: The end date of this offer is 18 Aug 2025 23:59 Some products may be excluded. There may be exclusions based on location. The price and discount displayed were correct at the time of publication. The retailer can change, pause or end this promotion at any time without notice. By using this promotion, you acknowledge that you have read and understood the above terms and conditions. For further details, please check the retailer's website.This promotion is: (i) only valid on the retailer's website; (ii) subject to availability; (iii) must be used before the expiration date; (iv) cannot be used in conjunction with other offers, promotions or discounts unless stated otherwise; (v) may not apply to taxes or any other fees; and (vi) not transferable or redeemable for cash or credit. Further important things to note about this promotion: The end date of this offer is 18 Aug 2025 23:59 Some products may be excluded. There may be exclusions based on location. The price and discount displayed were correct at the time of publication. The retailer can change, pause or end this promotion at any time without notice. By using this promotion, you acknowledge that you have read and understood the above terms and conditions. For further details, please check the retailer's website.

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Enjoy up to 20% off full-priced orders by entering this Gym King discount code

Ends: 22 Sep, 2025

Terms and Conditions

Code

Save 20% on your next order when using this Gym King discount code

Only 5 Days Left

Added by Rachael S

Terms and Conditions

Code

Get 20% off your first order when using this Gym King voucher code

Only 5 Days Left

Added by Rachael S

Terms and Conditions

Code

Get 20% off your order when using this Gym King discount code

Only 1 Day Left

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Code

Enjoy up to 20% off orders by entering this Gym King discount code

Only 3 Days Left

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Code

Get 15% off selected orders when using this Gym King promo code

Offer Expires Today

Terms and Conditions

Code

Save 15% on selected orders when you use this Gym King voucher code

Ends: 01 Sep, 2025

Terms and Conditions

Code

Save 10% on orders when using this Gym King voucher code

Only 1 Day Left

Terms and Conditions

Discount

Enjoy 15% off your first order by signing up to the Gym King newsletter

Ends: 11 Mar, 2026

Discount

Enjoy free delivery on orders over £75 at Gym King

Ends: 01 Sep, 2025

Terms and Conditions

Exclusions my apply.

Discount

20% off with youth discount at Gym King

Ends: 05 Mar, 2026

Added by Cait B

Discount

Student

Enjoy 15% student discount at Gym King

Ends: 30 Nov, 2025

Terms and Conditions

Terms apply.

Discount

NHS

10% off key worker discount at Gym King

Ends: 30 Sep, 2025

Added by Cait B

Terms and Conditions

Terms apply.

Discount

Get up to 70% off menswear in the Summer sale at Gym King

Only 4 Days Left

Added by Cait B

Terms and Conditions

Exclusions may apply

Discount

Save up to 70% on womenswear in the sale at Gym King

Ends: 28 Aug, 2025

Added by Cait B

Terms and Conditions

Exclusions may apply

Discount

Get 100 points for the loyalty scheme for you and a friend with referrals at Gym King

Only 3 Days Left

Terms and Conditions

Exclusions may apply

Previous The Gym King Codes

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Get 25% off your order by entering this Gym King voucher code

Offer Expired

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Get 25% off orders when using this Gym King promo code

Offer Expired

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Enjoy 25% off selected orders by using this Gym King promo code

Offer Expired

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Get 25% off orders by entering this Gym King voucher code

Offer Expired

Added by Cait B

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Code

Enjoy 25% off orders by entering this Gym King promo code

Offer Expired

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Code

Save 25% on your first order when using this Gym King promo code

Offer Expired

Terms and Conditions

Jump to category:

FAQs
Delivery & Returns FAQs
Discount FAQs
Other FAQs
Our Gym King Money-Saving Tips
How to your Gym King discount code
How do we source discount codes?
What if my discount code doesn't work?
How we make money

By Nathan Walters

last updated 17 August 2025

in Vouchers

FAQs

Delivery & Returns FAQs

Can I get free delivery at Gym King?

Gym King offers free Standard UK delivery on all orders over £75.00. You can also get free premium delivery on orders over £150. This will automatically be calculated when you proceed to check out.

What is Gym King returns policy?

If you're unhappy with your Gym King order you can return your items within 30 days for a full refund. Please note, that they cannot accept returns on underwear or swimwear due to hygiene reasons. To start a return, please visit their Return Portal page.

Can I cancel my order with Gym King?

Unfortunately, you can't cancel an order once it has been placed. You can refuse the parcel upon delivery, however, meaning it’ll be sent back to Gym King. From here, they should offer you a full refund.

Discount FAQs

Can I get a student discount at Gym King?

Yes, you can. Students can benefit from 20% off all orders at Gym King. Simply register your student status with UNiDAYS to start saving.

Can I get an NHS discount at Gym King?

Yes, Gym King offers a 20% Key Worker discount! To make the most of these savings, you’ll first need to verify your employment status.

Other FAQs

Is Gym King a good brand?

Yes, on Trustpilot, Gym King currently holds a rating of 'Excellent' with a score of 4.3 out of 5 stars based on over 45,000 reviews.

How can I contact Gym King?

To contact the Gym King customer service team, email customerservice@gymking.com and the team will get back to you as soon as possible.

Our Gym King Money-Saving Tips

Other ways to save at Gym King include joining the loyalty club, shopping the sale, referring a friend and signing up for the newsletter.

Join The Loyalty Club. You can join the Gym King Members Lounge for £10.00 per year. Here, you’ll unlock exclusive benefits and receive rewards for every purchase. You’ll also get free UK delivery, early access to new arrivals, 20% off your next order and even a gift on your birthday!

Shop The Sale. To pick up your next favourite exercise outfit, make sure to check out the sale page at Gym King. We've previously seen discounts such as 50% off menswear and 50% off womenswear.

Refer A Friend. If you love the loyalty program at Gym King, you can refer a friend to join, and they'll earn 100 points to use on future discounts. As a thank you, you'll also earn 100 reward points.

Sign Up For The Newsletter. Sign up for the Gym King newsletter today and be rewarded with a 15% discount on your first order. You'll also stay up-to-date with the latest and greatest offers on products and upcoming promotions.

How to your Gym King discount code

Take a look at our available Gym King discount codes and find the one that works best for your shopping needs.
Once you’ve found your code, head over to the Gym King website and start shopping!
Find everything you like and add it to your basket.
When you’re happy with everything you’ve added, you can begin the checkout process.
Enter your details and your discount code into the promo code box.
Hit the ‘Apply’ button to watch your total bill shrink.

How do we source discount codes?

At MyVoucherCodes, we’re lucky to have a team of hard-working individuals who are dedicated to finding you the best possible discount codes, deals and offers that are currently available. We also work closely with retailers to secure exclusive promotions; providing you with unique savings that you won’t find anywhere else.

We keep in touch with retailers and brands

Based in London, our Commercial team is a key part of everything we do. They know the industry, and they work tirelessly to build relationships with big-name retailers in order to secure exclusive offers and rewards that are then passed on to our customers. They keep their ear to the ground for any upcoming offers and sale events too, meaning we’re always ahead of the game when it comes to updating our website.

Our team scours the web for discounts

They work in tandem with our Deal Experts, who can be found at our Cardiff office. These deal-finding wizards scour the web for all of the best discounts and promotions around, before loading them onto our website for customers to enjoy. They also work closely with affiliate networks that keep us informed of the latest offers for the retailers they represent. Our dedicated retailer pages are updated at least twice a week, meaning you can be confident that the voucher codes you’re seeing are up-to-date and valid.

We share our money-saving knowledge

On our retailer pages, you’ll notice in-depth information about the brand and researched hints and tips on how to save money when shopping online. This is where our Category Editors come in - they know a thing or two when it comes to savvy shopping. From technology, health & beauty and fashion to food & drink, home & garden and travel, they keep all pages up to date with content that is designed to make your shopping experience that little bit easier and to help you save money in the process. For more information on the MyVoucherCodes team and the company as a whole, be sure to check out our About Us page.

What if my discount code doesn't work?

As a collaborative team, we do our best to ensure that incorrect or outdated discount codes and offers aren’t listed on any of our retailer pages. To do this, we test the codes ourselves to make sure that they work and aim to give as much guidance as possible with regard to how they are supposed to be used.

However, sometimes details change or codes expire without us knowing. If you find this to be the case, you can get in touch by emailing info@myvouchercodes.co.uk or by visiting our contact page.

How we make money

Using our discount codes is totally free, although we understand that this may seem too good to be true. Like all businesses, we need to make money, and we do this via commission-based relationships with brands and retailers - we earn a small percentage from the retailer every time someone uses a code on our website or clicks through to a sale.

We also make money by offering the brands we work with the chance to buy some extra space on our website, in turn giving more exposure to their biggest and best discounts. And that’s it! By using this model, we’re able to do what we do without charging our customers a penny.

I started at MyVoucherCodes as a Deal Expert, sourcing top deals and discount codes. I combined these skills with my passion for writing to become an Editor, helping readers save money. As a former student and homeowner, I understand the need to budget and provide shopping tips, especially for vegetarian and vegan diets. I've also written for publications like GamesRadar+, The Sun, My Weekly, iPaper and Pick Me Up!

I play video games, write reviews for GameReport in my spare time, and love trying out the latest tech gadgets. I also enjoy DIY projects, having worked in a tool store and renovated my home on a budget.

Founded in 2014, Gym King specialises in fitness and fashion, delivering stylish lifestyle and gym wear products to customers worldwide. They cover men's and womenswear and have everything on offer, from tracksuits and leggings to t-shirts, shorts and swimwear.

As a company, Gym King prides itself on having a positive mindset and building a sense of community. They also believe in developing a sustainable future and have pledged to reduce their carbon footprint by 2025.