For triangulation, first here are some common weight / balance / swing weight pairings, for standard length 27" racquets, strung with ~17g of string:
310g, 310mm unstrung => ~327g, 321mm strung => ~320 kg·cm²
(e.g. Prince Tour 100 310g)
305g, 315mm unstrung => ~322g, 325mm strung => ~321 kg·cm²
(Babolat Aero 98)
305g, 320mm => ~322g, 330mm strung => ~324 kg·cm²
(Wilson Blade)
315g, 315mm unstrung => 332g, 324mm strung => ~325 kg·cm²
(Head Radical Pro)
340g, 305mm => ~357g, 314mm strung => ~330 kg·cm²
So the swing weight numbers between these racquets are not that different, though a Blade swing will feel much more head-heavy (supported?), while an RF swing will feel more plank-y, in comparison. The other frames somewhere in between.
Some more pairings (g / mm / kg·cm²):
315 330 330
320 327 320
320 330 322
320 333 326
326 335 325
326 325 330
329 320 320
323 324 320
335 305 305
335 315 317
337 340 371
340 327 328
Finally, most of what I had compiled over the years - maybe your racquet is close to an entry?
| g | mm | kg cm² |
| 272 | 349 | 294 |
| 272 | 358 | 315 |
| 272 | 356 | 304 |
| 275 | 361 | 330 |
| 275 | 349 | 304 |
| 275 | 349 | 304 |
| 275 | 352 | 309 |
| 278 | 340 | 294 |
| 278 | 350 | 304 |
| 281 | 350 | 305 |
| 283 | 340 | 293 |
| 283 | 350 | 300 |
| 283 | 343 | 308 |
| 283 | 337 | 296 |
| 283 | 348 | 311 |
| 283 | 348 | 302 |
| 283 | 334 | 282 |
| 283 | 345 | 315 |
| 286 | 330 | 314 |
| 286 | 340 | 299 |
| 286 | 343 | 304 |
| 286 | 348 | 314 |
| 289 | 352 | 309 |
| 289 | 343 | 315 |
| 289 | 340 | 308 |
| 289 | 337 | 298 |
| 289 | 343 | 300 |
| 292 | 349 | 298 |
| 292 | 332 | 309 |
| 292 | 343 | 302 |
| 295 | 340 | 311 |
| 295 | 330 | 304 |
| 295 | 330 | 301 |
| 298 | 330 | 314 |
| 298 | 343 | 307 |
| 298 | 337 | 308 |
| 298 | 340 | 309 |
| 298 | 323 | 314 |
| 301 | 330 | 305 |
| 301 | 338 | 314 |
| 301 | 335 | 311 |
| 301 | 337 | 312 |
| 303 | 333 | 313 |
| 303 | 338 | 315 |
| 303 | 333 | 309 |
| 303 | 339 | 317 |
| 303 | 330 | 313 |
| 303 | 330 | 305 |
| 303 | 339 | 304 |
| 306 | 333 | 313 |
| 306 | 333 | 312 |
| 306 | 345 | 321 |
| 306 | 330 | 317 |
| 306 | 330 | 318 |
| 306 | 335 | 312 |
| 309 | 340 | 312 |
| 309 | 333 | 310 |
| 310 | 311 | 293 |
| 310 | 312 | 292 |
| 311 | 311 | 291 |
| 312 | 337 | 315 |
| 312 | 323 | 325 |
| 312 | 340 | 325 |
| 312 | 324 | 320 |
| 312 | 333 | 316 |
| 312 | 333 | 315 |
| 312 | 333 | 316 |
| 312 | 328 | 313 |
| 312 | 330 | 312 |
| 312 | 330 | 314 |
| 312 | 330 | 310 |
| 312 | 311 | 293 |
| 314 | 325 | 306 |
| 315 | 330 | 314 |
| 315 | 330 | 310 |
| 315 | 315 | 311 |
| 315 | 334 | 318 |
| 315 | 332 | 320 |
| 315 | 325 | 306 |
| 315 | 333 | 314 |
| 315 | 330 | 314 |
| 315 | 330 | 314 |
| 315 | 330 | 310 |
| 315 | 330 | 319 |
| 315 | 334 | 327 |
| 315 | 334 | 310 |
| 315 | 328 | 319 |
| 315 | 332 | 321 |
| 315 | 330 | 320 |
| 315 | 332 | 317 |
| 315 | 330 | 314 |
| 315 | 329 | 316 |
| 315 | 330 | 326 |
| 315 | 330 | 330 |
| 315 | 320 | 303 |
| 316 | 323 | 320 |
| 317 | 316 | 297 |
| 317 | 318 | 299 |
| 318 | 327 | 329 |
| 318 | 327 | 315 |
| 318 | 320 | 316 |
| 318 | 333 | 328 |
| 318 | 329 | 317 |
| 318 | 333 | 323 |
| 318 | 327 | 317 |
| 318 | 330 | 318 |
| 318 | 330 | 316 |
| 318 | 333 | 316 |
| 318 | 330 | 320 |
| 318 | 333 | 319 |
| 318 | 320 | 317 |
| 318 | 325 | 320 |
| 318 | 330 | 320 |
| 318 | 330 | 322 |
| 318 | 324 | 317 |
| 318 | 330 | 324 |
| 318 | 330 | 317 |
| 318 | 330 | 318 |
| 318 | 329 | 317 |
| 318 | 330 | 316 |
| 318 | 337 | 330 |
| 319 | 322 | 324 |
| 320 | 330 | 323 |
| 320 | 327 | 320 |
| 320 | 327 | 323 |
| 320 | 333 | 327 |
| 320 | 330 | 316 |
| 320 | 330 | 327 |
| 320 | 330 | 313 |
| 320 | 340 | 317 |
| 320 | 340 | 329 |
| 320 | 339 | 334 |
| 320 | 330 | 322 |
| 320 | 333 | 326 |
| 320 | 327 | 320 |
| 320 | 339 | 327 |
| 320 | 334 | 333 |
| 320 | 334 | 320 |
| 320 | 327 | 318 |
| 320 | 330 | 323 |
| 321 | 325 | 318 |
| 321 | 327 | 313 |
| 323 | 323 | 314 |
| 323 | 328 | 324 |
| 323 | 327 | 314 |
| 323 | 330 | 320 |
| 323 | 334 | 333 |
| 323 | 333 | 322 |
| 323 | 325 | 318 |
| 323 | 325 | 321 |
| 323 | 325 | 322 |
| 323 | 320 | 325 |
| 323 | 324 | 320 |
| 323 | 324 | 319 |
| 323 | 325 | 316 |
| 323 | 325 | 320 |
| 323 | 323 | 324 |
| 323 | 321 | 309 |
| 323 | 318 | 309 |
| 323 | 318 | 300 |
| 324 | 334 | 330 |
| 325 | 330 | 325 |
| 325 | 335 | 335 |
| 325 | 317 | 322 |
| 325 | 324 | 315 |
| 326 | 330 | 321 |
| 326 | 320 | 319 |
| 326 | 321 | 315 |
| 326 | 318 | 313 |
| 326 | 324 | 319 |
| 326 | 343 | 336 |
| 326 | 335 | 325 |
| 326 | 323 | 324 |
| 326 | 330 | 318 |
| 326 | 327 | 318 |
| 326 | 330 | 313 |
| 326 | 327 | 320 |
| 326 | 324 | 316 |
| 326 | 324 | 315 |
| 326 | 321 | 321 |
| 326 | 325 | 315 |
| 326 | 330 | 317 |
| 326 | 320 | 323 |
| 326 | 335 | 325 |
| 326 | 325 | 330 |
| 326 | 325 | 329 |
| 326 | 325 | 318 |
| 326 | 320 | 317 |
| 326 | 332 | 321 |
| 326 | 324 | 326 |
| 326 | 326 | 317 |
| 326 | 320 | 309 |
| 326 | 324 | 316 |
| 326 | 324 | 314 |
| 326 | 324 | 321 |
| 326 | 320 | 309 |
| 327 | 326 | 315 |
| 327 | 322 | 323 |
| 328 | 330 | 331 |
| 328 | 326 | 320 |
| 328 | 324 | 320 |
| 328 | 319 | 294 |
| 329 | 321 | 301 |
| 329 | 321 | 317 |
| 329 | 320 | 318 |
| 329 | 324 | 332 |
| 329 | 320 | 320 |
| 329 | 323 | 326 |
| 329 | 324 | 332 |
| 329 | 320 | 328 |
| 329 | 327 | 322 |
| 329 | 330 | 317 |
| 329 | 321 | 332 |
| 329 | 340 | 336 |
| 332 | 321 | 331 |
| 332 | 324 | 328 |
| 332 | 318 | 318 |
| 332 | 320 | 311 |
| 332 | 320 | 310 |
| 332 | 320 | 324 |
| 332 | 320 | 323 |
| 332 | 320 | 319 |
| 332 | 320 | 320 |
| 332 | 320 | 328 |
| 332 | 324 | 334 |
| 332 | 330 | 332 |
| 332 | 320 | 325 |
| 332 | 324 | 322 |
| 332 | 325 | 324 |
| 332 | 328 | 328 |
| 332 | 324 | 319 |
| 332 | 321 | 325 |
| 332 | 327 | 318 |
| 332 | 321 | 312 |
| 332 | 330 | 319 |
| 332 | 321 | 335 |
| 333 | 328 | 322 |
| 335 | 317 | 322 |
| 335 | 310 | 310 |
| 335 | 321 | 317 |
| 335 | 324 | 327 |
| 335 | 320 | 325 |
| 335 | 320 | 324 |
| 335 | 318 | 319 |
| 335 | 321 | 317 |
| 335 | 321 | 322 |
| 335 | 318 | 323 |
| 335 | 315 | 317 |
| 335 | 305 | 305 |
| 335 | 318 | 308 |
| 336 | 331 | 346 |
| 336 | 324 | 317 |
| 337 | 321 | 313 |
| 337 | 320 | 319 |
| 337 | 321 | 326 |
| 337 | 323 | 328 |
| 337 | 326 | 331 |
| 337 | 340 | 371 |
| 337 | 324 | 331 |
| 337 | 320 | 323 |
| 337 | 321 | 324 |
| 337 | 321 | 337 |
| 337 | 314 | 313 |
| 337 | 314 | 325 |
| 337 | 317 | 310 |
| 338 | 321 | 335 |
| 339 | 326 | 323 |
| 339 | 318 | 311 |
| 339 | 305 | 306 |
| 339 | 305 | 305 |
| 339 | 305 | 302 |
| 339 | 330 | 349 |
| 340 | 321 | 322 |
| 340 | 324 | 330 |
| 340 | 324 | 322 |
| 340 | 325 | 324 |
| 340 | 321 | 316 |
| 340 | 324 | 330 |
| 340 | 321 | 335 |
| 340 | 321 | 320 |
| 340 | 327 | 328 |
| 340 | 305 | 302 |
| 340 | 304 | 295 |
| 340 | 305 | 299 |
| 340 | 320 | 316 |
| 341 | 324 | 333 |
| 341 | 326 | 322 |
| 341 | 305 | 303 |
| 341 | 303 | 303 |
| 341 | 305 | 298 |
| 342 | 299 | 292 |
| 342 | 304 | 299 |
| 343 | 311 | 320 |
| 343 | 329 | 323 |
| 343 | 311 | 324 |
| 343 | 321 | 316 |
| 343 | 318 | 330 |
| 344 | 333 | 347 |
| 345 | 321 | 323 |
| 346 | 321 | 333 |
| 346 | 318 | 327 |
| 346 | 318 | 323 |
| 346 | 323 | 331 |
| 346 | 321 | 334 |
| 346 | 320 | 333 |
| 346 | 320 | 330 |
| 346 | 305 | 311 |
| 346 | 308 | 341 |
| 346 | 324 | 334 |
| 346 | 329 | 348 |
| 347 | 318 | 338 |
| 349 | 320 | 327 |
| 349 | 313 | 325 |
| 349 | 314 | 337 |
| 349 | 318 | 345 |
| 354 | 311 | 321 |
| 354 | 310 | 333 |
| 354 | 314 | 333 |
| 354 | 314 | 336 |
| 356 | 313 | 337 |
| 356 | 315 | 334 |
| 357 | 315 | 338 |
| 357 | 315 | 335 |
| 357 | 316 | 335 |
| 358 | 314 | 331 |
| 358 | 309 | 323 |
| 359 | 316 | 351 |
| 362 | 320 | 362 |
| 363 | 324 | 345 |
| 379 | 313 | 354 |