Free cycling calculators for your website

21 embeddable calculators

1. 01

   Tire pressure calculator

   Front and rear pressure in psi and bar from your weight, tire width and riding surface. Road and gravel, tubeless or tubes.

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   <iframe src="https://pedalbrief.com/embed/tire-pressure" title="Tire pressure calculator by Pedal Brief" width="100%" height="900" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/tire-pressure">Tire pressure calculator</a> by Pedal Brief</p>

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2. 02

   Gear ratio calculator

   Ratio, development in metres and speed at 90 rpm for every gear. Compare two setups, like 2x against 1x.

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   <iframe src="https://pedalbrief.com/embed/gear-calculator" title="Gear ratio calculator by Pedal Brief" width="100%" height="1000" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/gear-calculator">Gear ratio calculator</a> by Pedal Brief</p>

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3. 03

   FTP and power zone calculator

   Your FTP from a 20-minute or ramp test, watts per kilo, and all seven Coggan power zones in watts.

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   <iframe src="https://pedalbrief.com/embed/ftp-calculator" title="FTP and power zone calculator by Pedal Brief" width="100%" height="1000" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/ftp-calculator">FTP and power zone calculator</a> by Pedal Brief</p>

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4. 04

   Chain length calculator

   Chain length in links from your chainstay, largest chainring and largest cog, plus the Shimano and SRAM check on the bike.

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   <iframe src="https://pedalbrief.com/embed/chain-length" title="Chain length calculator by Pedal Brief" width="100%" height="1100" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/chain-length">Chain length calculator</a> by Pedal Brief</p>

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5. 05

   Cycling calorie calculator

   Work in kJ from average power and ride time, or straight from your head unit, and the calories it took, with the efficiency assumption shown.

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   <iframe src="https://pedalbrief.com/embed/calories-from-power" title="Cycling calorie calculator by Pedal Brief" width="100%" height="1000" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/calories-from-power">Cycling calorie calculator</a> by Pedal Brief</p>

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6. 06

   Derailleur capacity checker

   Will your rear derailleur take these chainrings and cassette? Total capacity and max cog, checked against Shimano, SRAM and Campagnolo specs.

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   <iframe src="https://pedalbrief.com/embed/derailleur-capacity" title="Derailleur capacity checker by Pedal Brief" width="100%" height="1250" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/derailleur-capacity">Derailleur capacity checker</a> by Pedal Brief</p>

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7. 07

   What to wear by temperature

   Pick the forecast and see what Rapha, POC, Canyon and Pactimo each recommend in their own temperature guides, side by side.

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   <iframe src="https://pedalbrief.com/embed/what-to-wear" title="What to wear by temperature by Pedal Brief" width="100%" height="1500" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/what-to-wear">What to wear by temperature</a> by Pedal Brief</p>

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8. 08

   Saddle height calculator

   Saddle height from your inseam by the LeMond, Genzling and Hamley & Thomas formulas, side by side, with what each one measures.

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   <iframe src="https://pedalbrief.com/embed/saddle-height" title="Saddle height calculator by Pedal Brief" width="100%" height="1150" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/saddle-height">Saddle height calculator</a> by Pedal Brief</p>

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9. 09

   Tire clearance lookup

   Filter 14 gravel frames by brand or a minimum tire width. Max clearance only as the brands state it.

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   <iframe src="https://pedalbrief.com/embed/tire-clearance" title="Tire clearance lookup by Pedal Brief" width="100%" height="900" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/tire-clearance">Tire clearance lookup</a> by Pedal Brief</p>

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10. 10

    Chain wear thresholds

    Park Tool, SRAM and Shimano published chain wear thresholds side by side. Optional elongation % go/no-go.

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    <iframe src="https://pedalbrief.com/embed/chain-wear" title="Chain wear thresholds by Pedal Brief" width="100%" height="1200" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/chain-wear">Chain wear thresholds</a> by Pedal Brief</p>

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11. 11

    How much tubeless sealant

    How much tubeless sealant by tire width, from 10 brands' own published figures, side by side.

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    <iframe src="https://pedalbrief.com/embed/sealant-amount" title="How much tubeless sealant by Pedal Brief" width="100%" height="1400" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/sealant-amount">How much tubeless sealant</a> by Pedal Brief</p>

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12. 12

    Tire size converter

    Convert 700x28c, 40-622, 29x2.2 and other marks to ISO/ETRTO, bead seat diameter and brand circumference charts.

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    <iframe src="https://pedalbrief.com/embed/tire-size" title="Tire size converter by Pedal Brief" width="100%" height="1200" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/tire-size">Tire size converter</a> by Pedal Brief</p>

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13. 13

    Climb time calculator

    How long a climb takes at your power, or the watts a target time needs, with VAM, W/kg and where the watts go.

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    <iframe src="https://pedalbrief.com/embed/climb-time" title="Climb time calculator by Pedal Brief" width="100%" height="1250" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/climb-time">Climb time calculator</a> by Pedal Brief</p>

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14. 14

    Heart-rate zone calculator

    Heart-rate zones in bpm from your threshold or max HR, by Joe Friel, Andrew Coggan, Polar and Garmin, side by side.

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    <iframe src="https://pedalbrief.com/embed/hr-zones" title="Heart-rate zone calculator by Pedal Brief" width="100%" height="2250" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/hr-zones">Heart-rate zone calculator</a> by Pedal Brief</p>

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15. 15

    TSS calculator

    Training Stress Score and Intensity Factor from your FTP, ride time and Normalized Power, with Coggan's reference ranges.

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    <iframe src="https://pedalbrief.com/embed/tss-calculator" title="TSS calculator by Pedal Brief" width="100%" height="1900" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/tss-calculator">TSS calculator</a> by Pedal Brief</p>

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16. 16

    Rim and tire width checker

    Enter your internal rim width: the tire range the ETRTO table, DT Swiss and ENVE each publish for it, plus hookless minimums.

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    <iframe src="https://pedalbrief.com/embed/rim-tire-width" title="Rim and tire width checker by Pedal Brief" width="100%" height="1700" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/rim-tire-width">Rim and tire width checker</a> by Pedal Brief</p>

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17. 17

    VO2max from power

    VO2max estimates from your ramp-test peak or best 5-minute power, by Storer, FRIEND and Sitko's published equations, side by side.

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    <iframe src="https://pedalbrief.com/embed/vo2max-from-power" title="VO2max from power by Pedal Brief" width="100%" height="1900" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/vo2max-from-power">VO2max from power</a> by Pedal Brief</p>

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18. 18

    Carbs and fluid per hour

    Carbohydrate and fluid per hour for your ride time, as Jeukendrup, the ACSM joint statement and the ISSN publish it, side by side, plus your sweat rate.

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    <iframe src="https://pedalbrief.com/embed/ride-fueling" title="Carbs and fluid per hour by Pedal Brief" width="100%" height="3000" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/ride-fueling">Carbs and fluid per hour</a> by Pedal Brief</p>

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19. 19

    Cycling power and speed calculator

    Your speed at a given power, or the watts a target speed takes, with gradient, position, wind and where the watts go.

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    <iframe src="https://pedalbrief.com/embed/power-speed" title="Cycling power and speed calculator by Pedal Brief" width="100%" height="1500" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/power-speed">Cycling power and speed calculator</a> by Pedal Brief</p>

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20. 20

    Cycling size finder

    Your measurements against 10 brands’ own size charts, side by side: jerseys, jackets, bibs and tights, men’s and women’s.

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    <iframe src="https://pedalbrief.com/embed/cycling-size-finder" title="Cycling size finder by Pedal Brief" width="100%" height="1900" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/cycling-size-finder">Cycling size finder</a> by Pedal Brief</p>

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21. 21

    Tubeless valve length by rim depth

    Enter your rim depth and see what 6 valve makers’ own size guides recommend, side by side.

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    <iframe src="https://pedalbrief.com/embed/tubeless-valve-length" title="Tubeless valve length by rim depth by Pedal Brief" width="100%" height="1700" style="border:0;max-width:680px" loading="lazy"></iframe> <p><a href="https://pedalbrief.com/tools/tubeless-valve-length">Tubeless valve length by rim depth</a> by Pedal Brief</p>

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