Embed · free · no account neededFree calculators for your website.
Six of Splyt’s lifting and nutrition calculators, ready to drop into a gym, coaching, club or blog page. Copy the code under the one you want and paste it where it should appear. It’s free, there’s nothing to sign up for, and it sizes itself to fit and follows light or dark mode.
One-rep max calculator
Estimate your one-rep max from any set with Epley, Brzycki, Lander and four more, see how far they agree, and get a percentage table rounded to weights you can load. Open the full one-rep max calculator
<iframe src="https://splyt.fit/embed/one-rep-max" title="One-rep max calculator" width="100%" height="900" style="border:0;max-width:760px" loading="lazy"></iframe>
<p><a href="https://splyt.fit/tools/one-rep-max">One-rep max calculator</a> by Splyt</p>
<script src="https://splyt.fit/embed.js" async></script>
Barbell plate calculator
Type a weight and see the plates on each side, drawn on the bar in competition colours. Pounds or kilograms, any bar, and only the plates your gym actually has. Open the full barbell plate calculator
<iframe src="https://splyt.fit/embed/plates" title="Barbell plate calculator" width="100%" height="760" style="border:0;max-width:760px" loading="lazy"></iframe>
<p><a href="https://splyt.fit/tools/plates">Barbell plate calculator</a> by Splyt</p>
<script src="https://splyt.fit/embed.js" async></script>
Warm-up set calculator
Get warm-up sets from the empty bar to your working weight for squat, bench or deadlift, every jump a whole plate change, with the plates for each. Open the full warm-up set calculator
<iframe src="https://splyt.fit/embed/warm-up" title="Warm-up set calculator" width="100%" height="820" style="border:0;max-width:760px" loading="lazy"></iframe>
<p><a href="https://splyt.fit/tools/warm-up">Warm-up set calculator</a> by Splyt</p>
<script src="https://splyt.fit/embed.js" async></script>
Strength standards calculator
See whether your lift is beginner, intermediate, advanced or elite for your bodyweight, and exactly how much you need for the next level. Open the full strength standards calculator
<iframe src="https://splyt.fit/embed/strength-standards" title="Strength standards calculator" width="100%" height="900" style="border:0;max-width:760px" loading="lazy"></iframe>
<p><a href="https://splyt.fit/tools/strength-standards">Strength standards calculator</a> by Splyt</p>
<script src="https://splyt.fit/embed.js" async></script>
TDEE calculator
Work out how many calories you burn in a day, see how much is resting, digesting and moving, and get a target for losing, keeping or building. Open the full tdee calculator
<iframe src="https://splyt.fit/embed/tdee" title="TDEE calculator" width="100%" height="900" style="border:0;max-width:760px" loading="lazy"></iframe>
<p><a href="https://splyt.fit/tools/tdee">TDEE calculator</a> by Splyt</p>
<script src="https://splyt.fit/embed.js" async></script>
Macro calculator
Protein, carbohydrate and fat targets in grams for fat loss, maintenance or muscle gain, with balanced, lower-carb, higher-carb and keto splits. Open the full macro calculator
<iframe src="https://splyt.fit/embed/macros" title="Macro calculator" width="100%" height="900" style="border:0;max-width:760px" loading="lazy"></iframe>
<p><a href="https://splyt.fit/tools/macros">Macro calculator</a> by Splyt</p>
<script src="https://splyt.fit/embed.js" async></script>
Questions
Does it cost anything?
No. The calculators are free to embed on any site, commercial or not. Please keep the credit link under the calculator.
Do my visitors need an account?
No. The embedded calculators never ask anyone to sign in and don’t store anything about your visitors.
Will it match my site?
It follows your visitor’s light or dark setting. Add ?theme=light or ?theme=dark to the iframe address to fix one.
What does the script line do?
It resizes the calculator to its content so there’s no inner scrollbar. Leave it out and the calculator keeps the height in the code.